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Finding the Fourth Proportional to 817,502,930.52, 1,127,985,634.62 and 469,755,233.88

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Solution

The fourth proportional to 817,502,930.52, 1,127,985,634.62 and 469,755,233.88 is: 648,165,450.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,502,930.52 : 1,127,985,634.62 = 469,755,233.88 : x
  2. Step 2: Convert to fraction form
    817,502,930.52/1,127,985,634.62 = 469,755,233.88/x
  3. Step 3: Cross multiply
    817,502,930.52x = 1,127,985,634.62 × 469,755,233.88
  4. Step 4: Simplify right side
    817,502,930.52x = 529,877,155,604,198,272
  5. Step 5: Solve for x
    x = 529,877,155,604,198,272/817,502,930.52
  6. Step 6: Final answer
    x = 648,165,450.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.