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Finding the Fourth Proportional to 468,721.52, 646,832.46 and 253,856.66

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Solution

The fourth proportional to 468,721.52, 646,832.46 and 253,856.66 is: 350,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,721.52 : 646,832.46 = 253,856.66 : x
  2. Step 2: Convert to fraction form
    468,721.52/646,832.46 = 253,856.66/x
  3. Step 3: Cross multiply
    468,721.52x = 646,832.46 × 253,856.66
  4. Step 4: Simplify right side
    468,721.52x = 164,202,727,875.18
  5. Step 5: Solve for x
    x = 164,202,727,875.18/468,721.52
  6. Step 6: Final answer
    x = 350,320.44

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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.