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Finding the Fourth Proportional to 555,691.62, 766,854.36 and 301,042.74

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Solution

The fourth proportional to 555,691.62, 766,854.36 and 301,042.74 is: 415,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,691.62 : 766,854.36 = 301,042.74 : x
  2. Step 2: Convert to fraction form
    555,691.62/766,854.36 = 301,042.74/x
  3. Step 3: Cross multiply
    555,691.62x = 766,854.36 × 301,042.74
  4. Step 4: Simplify right side
    555,691.62x = 230,855,937,715.35
  5. Step 5: Solve for x
    x = 230,855,937,715.35/555,691.62
  6. Step 6: Final answer
    x = 415,438.94

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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.