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Finding the Fourth Proportional to 377,517.92, 520,996.24 and 216,399.76

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Solution

The fourth proportional to 377,517.92, 520,996.24 and 216,399.76 is: 298,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,517.92 : 520,996.24 = 216,399.76 : x
  2. Step 2: Convert to fraction form
    377,517.92/520,996.24 = 216,399.76/x
  3. Step 3: Cross multiply
    377,517.92x = 520,996.24 × 216,399.76
  4. Step 4: Simplify right side
    377,517.92x = 112,743,461,296.90
  5. Step 5: Solve for x
    x = 112,743,461,296.90/377,517.92
  6. Step 6: Final answer
    x = 298,644.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.