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Finding the Fourth Proportional to 363,856.10, 545,784.15 and 231,323.90

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Solution

The fourth proportional to 363,856.10, 545,784.15 and 231,323.90 is: 346,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,856.10 : 545,784.15 = 231,323.90 : x
  2. Step 2: Convert to fraction form
    363,856.10/545,784.15 = 231,323.90/x
  3. Step 3: Cross multiply
    363,856.10x = 545,784.15 × 231,323.90
  4. Step 4: Simplify right side
    363,856.10x = 126,252,918,136.19
  5. Step 5: Solve for x
    x = 126,252,918,136.19/363,856.10
  6. Step 6: Final answer
    x = 346,985.85

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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.