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Finding the Fourth Proportional to 459,153.28, 687,446.88 and 248,034.88

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Solution

The fourth proportional to 459,153.28, 687,446.88 and 248,034.88 is: 371,359.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,153.28 : 687,446.88 = 248,034.88 : x
  2. Step 2: Convert to fraction form
    459,153.28/687,446.88 = 248,034.88/x
  3. Step 3: Cross multiply
    459,153.28x = 687,446.88 × 248,034.88
  4. Step 4: Simplify right side
    459,153.28x = 170,510,804,387.17
  5. Step 5: Solve for x
    x = 170,510,804,387.17/459,153.28
  6. Step 6: Final answer
    x = 371,359.22

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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.