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Finding the Fourth Proportional to 574,668,129.60, 862,002,194.40 and 542,923,387.20

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Solution

The fourth proportional to 574,668,129.60, 862,002,194.40 and 542,923,387.20 is: 814,385,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,668,129.60 : 862,002,194.40 = 542,923,387.20 : x
  2. Step 2: Convert to fraction form
    574,668,129.60/862,002,194.40 = 542,923,387.20/x
  3. Step 3: Cross multiply
    574,668,129.60x = 862,002,194.40 × 542,923,387.20
  4. Step 4: Simplify right side
    574,668,129.60x = 468,001,151,157,480,896
  5. Step 5: Solve for x
    x = 468,001,151,157,480,896/574,668,129.60
  6. Step 6: Final answer
    x = 814,385,080.80

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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.