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Finding the Fourth Proportional to 363,856.60, 545,784.90 and 231,324.40

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Solution

The fourth proportional to 363,856.60, 545,784.90 and 231,324.40 is: 346,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,856.60 : 545,784.90 = 231,324.40 : x
  2. Step 2: Convert to fraction form
    363,856.60/545,784.90 = 231,324.40/x
  3. Step 3: Cross multiply
    363,856.60x = 545,784.90 × 231,324.40
  4. Step 4: Simplify right side
    363,856.60x = 126,253,364,521.56
  5. Step 5: Solve for x
    x = 126,253,364,521.56/363,856.60
  6. Step 6: Final answer
    x = 346,986.60

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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.