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Finding the Fourth Proportional to 577,660.60, 866,490.90 and 178,265.80

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Solution

The fourth proportional to 577,660.60, 866,490.90 and 178,265.80 is: 267,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,660.60 : 866,490.90 = 178,265.80 : x
  2. Step 2: Convert to fraction form
    577,660.60/866,490.90 = 178,265.80/x
  3. Step 3: Cross multiply
    577,660.60x = 866,490.90 × 178,265.80
  4. Step 4: Simplify right side
    577,660.60x = 154,465,693,481.22
  5. Step 5: Solve for x
    x = 154,465,693,481.22/577,660.60
  6. Step 6: Final answer
    x = 267,398.70

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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.