Expanded Form of 4.000009

4.000009 = (4 * 100) + (9 * 1/106)
4.000009 = (4 * 1) + (9 * 1/1,000,000)
4.000009 = 4 + 9/1,000,000
4.000009 = 4 + 0.000009

The solution above and other expanded form solutions were provided by the Expanded Form Application.

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