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Finding the Fourth Proportional to 624,451.50, 861,743.02 and 337,971.57

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Solution

The fourth proportional to 624,451.50, 861,743.02 and 337,971.57 is: 466,400.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,451.50 : 861,743.02 = 337,971.57 : x
  2. Step 2: Convert to fraction form
    624,451.50/861,743.02 = 337,971.57/x
  3. Step 3: Cross multiply
    624,451.50x = 861,743.02 × 337,971.57
  4. Step 4: Simplify right side
    624,451.50x = 291,244,641,405.94
  5. Step 5: Solve for x
    x = 291,244,641,405.94/624,451.50
  6. Step 6: Final answer
    x = 466,400.74

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1.5x scale

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.