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Finding the Fourth Proportional to 624,601.53, 861,951.98 and 338,120.93

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Solution

The fourth proportional to 624,601.53, 861,951.98 and 338,120.93 is: 466,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,601.53 : 861,951.98 = 338,120.93 : x
  2. Step 2: Convert to fraction form
    624,601.53/861,951.98 = 338,120.93/x
  3. Step 3: Cross multiply
    624,601.53x = 861,951.98 × 338,120.93
  4. Step 4: Simplify right side
    624,601.53x = 291,444,008,093.12
  5. Step 5: Solve for x
    x = 291,444,008,093.12/624,601.53
  6. Step 6: Final answer
    x = 466,607.90

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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.