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Finding the Fourth Proportional to 498,407.46, 747,621.76 and 178,580.16

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Solution

The fourth proportional to 498,407.46, 747,621.76 and 178,580.16 is: 267,874.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,407.46 : 747,621.76 = 178,580.16 : x
  2. Step 2: Convert to fraction form
    498,407.46/747,621.76 = 178,580.16/x
  3. Step 3: Cross multiply
    498,407.46x = 747,621.76 × 178,580.16
  4. Step 4: Simplify right side
    498,407.46x = 133,510,413,520.28
  5. Step 5: Solve for x
    x = 133,510,413,520.28/498,407.46
  6. Step 6: Final answer
    x = 267,874.03

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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.