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Finding the Fourth Proportional to 514,170.52, 770,251.36 and 354,218.20

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Solution

The fourth proportional to 514,170.52, 770,251.36 and 354,218.20 is: 530,635.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,170.52 : 770,251.36 = 354,218.20 : x
  2. Step 2: Convert to fraction form
    514,170.52/770,251.36 = 354,218.20/x
  3. Step 3: Cross multiply
    514,170.52x = 770,251.36 × 354,218.20
  4. Step 4: Simplify right side
    514,170.52x = 272,837,050,286.75
  5. Step 5: Solve for x
    x = 272,837,050,286.75/514,170.52
  6. Step 6: Final answer
    x = 530,635.34

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Double scale
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Similar ratio
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1.5x scale

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.