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Finding the Fourth Proportional to 385,532.62, 577,640.88 and 273,025.92

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Solution

The fourth proportional to 385,532.62, 577,640.88 and 273,025.92 is: 409,072.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,532.62 : 577,640.88 = 273,025.92 : x
  2. Step 2: Convert to fraction form
    385,532.62/577,640.88 = 273,025.92/x
  3. Step 3: Cross multiply
    385,532.62x = 577,640.88 × 273,025.92
  4. Step 4: Simplify right side
    385,532.62x = 157,710,932,691.61
  5. Step 5: Solve for x
    x = 157,710,932,691.61/385,532.62
  6. Step 6: Final answer
    x = 409,072.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.