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Finding the Fourth Proportional to 575,491,296.80, 863,236,945.20 and 403,162,695.20

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Solution

The fourth proportional to 575,491,296.80, 863,236,945.20 and 403,162,695.20 is: 604,744,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,491,296.80 : 863,236,945.20 = 403,162,695.20 : x
  2. Step 2: Convert to fraction form
    575,491,296.80/863,236,945.20 = 403,162,695.20/x
  3. Step 3: Cross multiply
    575,491,296.80x = 863,236,945.20 × 403,162,695.20
  4. Step 4: Simplify right side
    575,491,296.80x = 348,024,933,423,046,720
  5. Step 5: Solve for x
    x = 348,024,933,423,046,720/575,491,296.80
  6. Step 6: Final answer
    x = 604,744,042.80

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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.