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Finding the Fourth Proportional to 541,921.60, 813,343.20 and 242,862.40

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Solution

The fourth proportional to 541,921.60, 813,343.20 and 242,862.40 is: 364,500.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,921.60 : 813,343.20 = 242,862.40 : x
  2. Step 2: Convert to fraction form
    541,921.60/813,343.20 = 242,862.40/x
  3. Step 3: Cross multiply
    541,921.60x = 813,343.20 × 242,862.40
  4. Step 4: Simplify right side
    541,921.60x = 197,530,481,575.68
  5. Step 5: Solve for x
    x = 197,530,481,575.68/541,921.60
  6. Step 6: Final answer
    x = 364,500.11

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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.