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Finding the Fourth Proportional to 296,591.60, 444,844.20 and 86,207.60

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Solution

The fourth proportional to 296,591.60, 444,844.20 and 86,207.60 is: 129,298.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,591.60 : 444,844.20 = 86,207.60 : x
  2. Step 2: Convert to fraction form
    296,591.60/444,844.20 = 86,207.60/x
  3. Step 3: Cross multiply
    296,591.60x = 444,844.20 × 86,207.60
  4. Step 4: Simplify right side
    296,591.60x = 38,348,950,855.92
  5. Step 5: Solve for x
    x = 38,348,950,855.92/296,591.60
  6. Step 6: Final answer
    x = 129,298.84

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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.