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Finding the Fourth Proportional to 568,749,872.70, 853,124,809.05 and 502,992,906.30

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Solution

The fourth proportional to 568,749,872.70, 853,124,809.05 and 502,992,906.30 is: 754,489,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,749,872.70 : 853,124,809.05 = 502,992,906.30 : x
  2. Step 2: Convert to fraction form
    568,749,872.70/853,124,809.05 = 502,992,906.30/x
  3. Step 3: Cross multiply
    568,749,872.70x = 853,124,809.05 × 502,992,906.30
  4. Step 4: Simplify right side
    568,749,872.70x = 429,115,727,140,692,032
  5. Step 5: Solve for x
    x = 429,115,727,140,692,032/568,749,872.70
  6. Step 6: Final answer
    x = 754,489,359.45

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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.