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Finding the Fourth Proportional to 625,434.53, 863,099.70 and 338,954.54

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Solution

The fourth proportional to 625,434.53, 863,099.70 and 338,954.54 is: 467,757.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,434.53 : 863,099.70 = 338,954.54 : x
  2. Step 2: Convert to fraction form
    625,434.53/863,099.70 = 338,954.54/x
  3. Step 3: Cross multiply
    625,434.53x = 863,099.70 × 338,954.54
  4. Step 4: Simplify right side
    625,434.53x = 292,551,561,787.64
  5. Step 5: Solve for x
    x = 292,551,561,787.64/625,434.53
  6. Step 6: Final answer
    x = 467,757.29

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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.