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Finding the Fourth Proportional to 624,439.97, 861,725.64 and 337,960.25

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Solution

The fourth proportional to 624,439.97, 861,725.64 and 337,960.25 is: 466,384.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,439.97 : 861,725.64 = 337,960.25 : x
  2. Step 2: Convert to fraction form
    624,439.97/861,725.64 = 337,960.25/x
  3. Step 3: Cross multiply
    624,439.97x = 861,725.64 × 337,960.25
  4. Step 4: Simplify right side
    624,439.97x = 291,229,012,725.81
  5. Step 5: Solve for x
    x = 291,229,012,725.81/624,439.97
  6. Step 6: Final answer
    x = 466,384.32

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Double scale
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Similar ratio
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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.