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Finding the Fourth Proportional to 577,320.20, 866,000.10 and 177,957.80

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Solution

The fourth proportional to 577,320.20, 866,000.10 and 177,957.80 is: 266,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,320.20 : 866,000.10 = 177,957.80 : x
  2. Step 2: Convert to fraction form
    577,320.20/866,000.10 = 177,957.80/x
  3. Step 3: Cross multiply
    577,320.20x = 866,000.10 × 177,957.80
  4. Step 4: Simplify right side
    577,320.20x = 154,111,472,595.78
  5. Step 5: Solve for x
    x = 154,111,472,595.78/577,320.20
  6. Step 6: Final answer
    x = 266,942.80

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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.