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Finding the Fourth Proportional to 468,737.28, 646,856.82 and 253,878.12

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Solution

The fourth proportional to 468,737.28, 646,856.82 and 253,878.12 is: 350,351.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,737.28 : 646,856.82 = 253,878.12 : x
  2. Step 2: Convert to fraction form
    468,737.28/646,856.82 = 253,878.12/x
  3. Step 3: Cross multiply
    468,737.28x = 646,856.82 × 253,878.12
  4. Step 4: Simplify right side
    468,737.28x = 164,222,793,370.78
  5. Step 5: Solve for x
    x = 164,222,793,370.78/468,737.28
  6. Step 6: Final answer
    x = 350,351.47

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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.