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Finding the Fourth Proportional to 354,909.60, 532,753.20 and 197,445.60

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Solution

The fourth proportional to 354,909.60, 532,753.20 and 197,445.60 is: 296,384.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,909.60 : 532,753.20 = 197,445.60 : x
  2. Step 2: Convert to fraction form
    354,909.60/532,753.20 = 197,445.60/x
  3. Step 3: Cross multiply
    354,909.60x = 532,753.20 × 197,445.60
  4. Step 4: Simplify right side
    354,909.60x = 105,189,775,225.92
  5. Step 5: Solve for x
    x = 105,189,775,225.92/354,909.60
  6. Step 6: Final answer
    x = 296,384.70

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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.