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Finding the Fourth Proportional to 577,862.20, 866,793.30 and 365,285.80

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Solution

The fourth proportional to 577,862.20, 866,793.30 and 365,285.80 is: 547,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,862.20 : 866,793.30 = 365,285.80 : x
  2. Step 2: Convert to fraction form
    577,862.20/866,793.30 = 365,285.80/x
  3. Step 3: Cross multiply
    577,862.20x = 866,793.30 × 365,285.80
  4. Step 4: Simplify right side
    577,862.20x = 316,627,284,025.14
  5. Step 5: Solve for x
    x = 316,627,284,025.14/577,862.20
  6. Step 6: Final answer
    x = 547,928.70

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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.