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Finding the Fourth Proportional to 623,376.60, 932,732.10 and 413,424.60

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Solution

The fourth proportional to 623,376.60, 932,732.10 and 413,424.60 is: 618,589.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,376.60 : 932,732.10 = 413,424.60 : x
  2. Step 2: Convert to fraction form
    623,376.60/932,732.10 = 413,424.60/x
  3. Step 3: Cross multiply
    623,376.60x = 932,732.10 × 413,424.60
  4. Step 4: Simplify right side
    623,376.60x = 385,614,395,349.66
  5. Step 5: Solve for x
    x = 385,614,395,349.66/623,376.60
  6. Step 6: Final answer
    x = 618,589.78

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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.