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Finding the Fourth Proportional to 555,711.03, 766,876.41 and 301,061.61

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Solution

The fourth proportional to 555,711.03, 766,876.41 and 301,061.61 is: 415,462.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,711.03 : 766,876.41 = 301,061.61 : x
  2. Step 2: Convert to fraction form
    555,711.03/766,876.41 = 301,061.61/x
  3. Step 3: Cross multiply
    555,711.03x = 766,876.41 × 301,061.61
  4. Step 4: Simplify right side
    555,711.03x = 230,877,046,665.62
  5. Step 5: Solve for x
    x = 230,877,046,665.62/555,711.03
  6. Step 6: Final answer
    x = 415,462.42

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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.