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Finding the Fourth Proportional to 532,656,031.80, 798,984,047.70 and 386,403,468.60

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Solution

The fourth proportional to 532,656,031.80, 798,984,047.70 and 386,403,468.60 is: 579,605,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,656,031.80 : 798,984,047.70 = 386,403,468.60 : x
  2. Step 2: Convert to fraction form
    532,656,031.80/798,984,047.70 = 386,403,468.60/x
  3. Step 3: Cross multiply
    532,656,031.80x = 798,984,047.70 × 386,403,468.60
  4. Step 4: Simplify right side
    532,656,031.80x = 308,730,207,387,347,904
  5. Step 5: Solve for x
    x = 308,730,207,387,347,904/532,656,031.80
  6. Step 6: Final answer
    x = 579,605,202.90

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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.