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Finding the Fourth Proportional to 468,489.48, 646,520.58 and 253,634.10

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Solution

The fourth proportional to 468,489.48, 646,520.58 and 253,634.10 is: 350,017.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,489.48 : 646,520.58 = 253,634.10 : x
  2. Step 2: Convert to fraction form
    468,489.48/646,520.58 = 253,634.10/x
  3. Step 3: Cross multiply
    468,489.48x = 646,520.58 × 253,634.10
  4. Step 4: Simplify right side
    468,489.48x = 163,979,665,439.78
  5. Step 5: Solve for x
    x = 163,979,665,439.78/468,489.48
  6. Step 6: Final answer
    x = 350,017.82

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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.