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Finding the Fourth Proportional to 715,472.60, 987,445.50 and 461,562.44

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Solution

The fourth proportional to 715,472.60, 987,445.50 and 461,562.44 is: 637,016.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,472.60 : 987,445.50 = 461,562.44 : x
  2. Step 2: Convert to fraction form
    715,472.60/987,445.50 = 461,562.44/x
  3. Step 3: Cross multiply
    715,472.60x = 987,445.50 × 461,562.44
  4. Step 4: Simplify right side
    715,472.60x = 455,767,754,347.02
  5. Step 5: Solve for x
    x = 455,767,754,347.02/715,472.60
  6. Step 6: Final answer
    x = 637,016.36

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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.