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Finding the Fourth Proportional to 568,486,531.20, 852,729,796.80 and 347,513,363.40

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Solution

The fourth proportional to 568,486,531.20, 852,729,796.80 and 347,513,363.40 is: 521,270,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,486,531.20 : 852,729,796.80 = 347,513,363.40 : x
  2. Step 2: Convert to fraction form
    568,486,531.20/852,729,796.80 = 347,513,363.40/x
  3. Step 3: Cross multiply
    568,486,531.20x = 852,729,796.80 × 347,513,363.40
  4. Step 4: Simplify right side
    568,486,531.20x = 296,334,999,757,366,528
  5. Step 5: Solve for x
    x = 296,334,999,757,366,528/568,486,531.20
  6. Step 6: Final answer
    x = 521,270,045.10

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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.