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Finding the Fourth Proportional to 580,644,807.60, 870,967,211.40 and 521,522,324.40

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Solution

The fourth proportional to 580,644,807.60, 870,967,211.40 and 521,522,324.40 is: 782,283,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,644,807.60 : 870,967,211.40 = 521,522,324.40 : x
  2. Step 2: Convert to fraction form
    580,644,807.60/870,967,211.40 = 521,522,324.40/x
  3. Step 3: Cross multiply
    580,644,807.60x = 870,967,211.40 × 521,522,324.40
  4. Step 4: Simplify right side
    580,644,807.60x = 454,228,844,565,514,176
  5. Step 5: Solve for x
    x = 454,228,844,565,514,176/580,644,807.60
  6. Step 6: Final answer
    x = 782,283,486.60

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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.