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Finding the Fourth Proportional to 577,863.60, 866,795.40 and 178,468.80

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Solution

The fourth proportional to 577,863.60, 866,795.40 and 178,468.80 is: 267,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,863.60 : 866,795.40 = 178,468.80 : x
  2. Step 2: Convert to fraction form
    577,863.60/866,795.40 = 178,468.80/x
  3. Step 3: Cross multiply
    577,863.60x = 866,795.40 × 178,468.80
  4. Step 4: Simplify right side
    577,863.60x = 154,695,934,883.52
  5. Step 5: Solve for x
    x = 154,695,934,883.52/577,863.60
  6. Step 6: Final answer
    x = 267,703.20

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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.