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Finding the Fourth Proportional to 404,366,966.60, 606,550,449.90 and 396,304,809.80

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Solution

The fourth proportional to 404,366,966.60, 606,550,449.90 and 396,304,809.80 is: 594,457,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,366,966.60 : 606,550,449.90 = 396,304,809.80 : x
  2. Step 2: Convert to fraction form
    404,366,966.60/606,550,449.90 = 396,304,809.80/x
  3. Step 3: Cross multiply
    404,366,966.60x = 606,550,449.90 × 396,304,809.80
  4. Step 4: Simplify right side
    404,366,966.60x = 240,378,860,681,723,936
  5. Step 5: Solve for x
    x = 240,378,860,681,723,936/404,366,966.60
  6. Step 6: Final answer
    x = 594,457,214.70

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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.