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Finding the Fourth Proportional to 366,687.60, 550,031.40 and 156,346.80

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Solution

The fourth proportional to 366,687.60, 550,031.40 and 156,346.80 is: 234,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,687.60 : 550,031.40 = 156,346.80 : x
  2. Step 2: Convert to fraction form
    366,687.60/550,031.40 = 156,346.80/x
  3. Step 3: Cross multiply
    366,687.60x = 550,031.40 × 156,346.80
  4. Step 4: Simplify right side
    366,687.60x = 85,995,649,289.52
  5. Step 5: Solve for x
    x = 85,995,649,289.52/366,687.60
  6. Step 6: Final answer
    x = 234,520.20

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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.