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Finding the Fourth Proportional to 623,922.92, 861,013.62 and 337,443

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Solution

The fourth proportional to 623,922.92, 861,013.62 and 337,443 is: 465,671.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,922.92 : 861,013.62 = 337,443 : x
  2. Step 2: Convert to fraction form
    623,922.92/861,013.62 = 337,443/x
  3. Step 3: Cross multiply
    623,922.92x = 861,013.62 × 337,443
  4. Step 4: Simplify right side
    623,922.92x = 290,543,018,973.66
  5. Step 5: Solve for x
    x = 290,543,018,973.66/623,922.92
  6. Step 6: Final answer
    x = 465,671.33

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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.