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Finding the Fourth Proportional to 435,489,781.60, 653,234,672.40 and 274,246,645.60

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Solution

The fourth proportional to 435,489,781.60, 653,234,672.40 and 274,246,645.60 is: 411,369,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,489,781.60 : 653,234,672.40 = 274,246,645.60 : x
  2. Step 2: Convert to fraction form
    435,489,781.60/653,234,672.40 = 274,246,645.60/x
  3. Step 3: Cross multiply
    435,489,781.60x = 653,234,672.40 × 274,246,645.60
  4. Step 4: Simplify right side
    435,489,781.60x = 179,147,417,695,314,912
  5. Step 5: Solve for x
    x = 179,147,417,695,314,912/435,489,781.60
  6. Step 6: Final answer
    x = 411,369,968.40

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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.