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Finding the Fourth Proportional to 624,287.72, 861,515.70 and 337,807.70

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Solution

The fourth proportional to 624,287.72, 861,515.70 and 337,807.70 is: 466,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,287.72 : 861,515.70 = 337,807.70 : x
  2. Step 2: Convert to fraction form
    624,287.72/861,515.70 = 337,807.70/x
  3. Step 3: Cross multiply
    624,287.72x = 861,515.70 × 337,807.70
  4. Step 4: Simplify right side
    624,287.72x = 291,026,637,130.89
  5. Step 5: Solve for x
    x = 291,026,637,130.89/624,287.72
  6. Step 6: Final answer
    x = 466,173.89

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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.