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Finding the Fourth Proportional to 624,394.02, 861,663.69 and 337,914.18

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Solution

The fourth proportional to 624,394.02, 861,663.69 and 337,914.18 is: 466,321.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,394.02 : 861,663.69 = 337,914.18 : x
  2. Step 2: Convert to fraction form
    624,394.02/861,663.69 = 337,914.18/x
  3. Step 3: Cross multiply
    624,394.02x = 861,663.69 × 337,914.18
  4. Step 4: Simplify right side
    624,394.02x = 291,168,379,242.12
  5. Step 5: Solve for x
    x = 291,168,379,242.12/624,394.02
  6. Step 6: Final answer
    x = 466,321.54

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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.