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Finding the Fourth Proportional to 624,394.61, 861,667.34 and 337,914.79

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Solution

The fourth proportional to 624,394.61, 861,667.34 and 337,914.79 is: 466,323.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,394.61 : 861,667.34 = 337,914.79 : x
  2. Step 2: Convert to fraction form
    624,394.61/861,667.34 = 337,914.79/x
  3. Step 3: Cross multiply
    624,394.61x = 861,667.34 × 337,914.79
  4. Step 4: Simplify right side
    624,394.61x = 291,170,134,402.22
  5. Step 5: Solve for x
    x = 291,170,134,402.22/624,394.61
  6. Step 6: Final answer
    x = 466,323.91

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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.