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Finding the Fourth Proportional to 354,832.40, 532,248.60 and 331,331.60

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Solution

The fourth proportional to 354,832.40, 532,248.60 and 331,331.60 is: 496,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,832.40 : 532,248.60 = 331,331.60 : x
  2. Step 2: Convert to fraction form
    354,832.40/532,248.60 = 331,331.60/x
  3. Step 3: Cross multiply
    354,832.40x = 532,248.60 × 331,331.60
  4. Step 4: Simplify right side
    354,832.40x = 176,350,780,235.76
  5. Step 5: Solve for x
    x = 176,350,780,235.76/354,832.40
  6. Step 6: Final answer
    x = 496,997.40

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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.