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Finding the Fourth Proportional to 404,367,073.60, 606,550,610.40 and 396,304,916.80

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Solution

The fourth proportional to 404,367,073.60, 606,550,610.40 and 396,304,916.80 is: 594,457,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,367,073.60 : 606,550,610.40 = 396,304,916.80 : x
  2. Step 2: Convert to fraction form
    404,367,073.60/606,550,610.40 = 396,304,916.80/x
  3. Step 3: Cross multiply
    404,367,073.60x = 606,550,610.40 × 396,304,916.80
  4. Step 4: Simplify right side
    404,367,073.60x = 240,378,989,189,561,216
  5. Step 5: Solve for x
    x = 240,378,989,189,561,216/404,367,073.60
  6. Step 6: Final answer
    x = 594,457,375.20

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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.