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Finding the Fourth Proportional to 404,366,964.10, 606,550,446.15 and 396,304,807.30

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Solution

The fourth proportional to 404,366,964.10, 606,550,446.15 and 396,304,807.30 is: 594,457,210.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,366,964.10 : 606,550,446.15 = 396,304,807.30 : x
  2. Step 2: Convert to fraction form
    404,366,964.10/606,550,446.15 = 396,304,807.30/x
  3. Step 3: Cross multiply
    404,366,964.10x = 606,550,446.15 × 396,304,807.30
  4. Step 4: Simplify right side
    404,366,964.10x = 240,378,857,679,204,768
  5. Step 5: Solve for x
    x = 240,378,857,679,204,768/404,366,964.10
  6. Step 6: Final answer
    x = 594,457,210.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.