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Finding the Fourth Proportional to 577,961.60, 866,359.20 and 262,644.80

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Solution

The fourth proportional to 577,961.60, 866,359.20 and 262,644.80 is: 393,702.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,961.60 : 866,359.20 = 262,644.80 : x
  2. Step 2: Convert to fraction form
    577,961.60/866,359.20 = 262,644.80/x
  3. Step 3: Cross multiply
    577,961.60x = 866,359.20 × 262,644.80
  4. Step 4: Simplify right side
    577,961.60x = 227,544,738,812.16
  5. Step 5: Solve for x
    x = 227,544,738,812.16/577,961.60
  6. Step 6: Final answer
    x = 393,702.17

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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.