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Finding the Fourth Proportional to 404,366,965.10, 606,550,447.65 and 396,304,808.30

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Solution

The fourth proportional to 404,366,965.10, 606,550,447.65 and 396,304,808.30 is: 594,457,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,366,965.10 : 606,550,447.65 = 396,304,808.30 : x
  2. Step 2: Convert to fraction form
    404,366,965.10/606,550,447.65 = 396,304,808.30/x
  3. Step 3: Cross multiply
    404,366,965.10x = 606,550,447.65 × 396,304,808.30
  4. Step 4: Simplify right side
    404,366,965.10x = 240,378,858,880,212,448
  5. Step 5: Solve for x
    x = 240,378,858,880,212,448/404,366,965.10
  6. Step 6: Final answer
    x = 594,457,212.45

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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.