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Finding the Fourth Proportional to 519,693.56, 717,179.52 and 281,229.56

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Solution

The fourth proportional to 519,693.56, 717,179.52 and 281,229.56 is: 388,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,693.56 : 717,179.52 = 281,229.56 : x
  2. Step 2: Convert to fraction form
    519,693.56/717,179.52 = 281,229.56/x
  3. Step 3: Cross multiply
    519,693.56x = 717,179.52 × 281,229.56
  4. Step 4: Simplify right side
    519,693.56x = 201,692,080,850.61
  5. Step 5: Solve for x
    x = 201,692,080,850.61/519,693.56
  6. Step 6: Final answer
    x = 388,098.10

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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.