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Finding the Fourth Proportional to 443,793.60, 665,690.40 and 177,595.20

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Solution

The fourth proportional to 443,793.60, 665,690.40 and 177,595.20 is: 266,392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,793.60 : 665,690.40 = 177,595.20 : x
  2. Step 2: Convert to fraction form
    443,793.60/665,690.40 = 177,595.20/x
  3. Step 3: Cross multiply
    443,793.60x = 665,690.40 × 177,595.20
  4. Step 4: Simplify right side
    443,793.60x = 118,223,419,726.08
  5. Step 5: Solve for x
    x = 118,223,419,726.08/443,793.60
  6. Step 6: Final answer
    x = 266,392.80

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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.