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Finding the Fourth Proportional to 480,712.47, 663,309.51 and 276,723.97

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Solution

The fourth proportional to 480,712.47, 663,309.51 and 276,723.97 is: 381,836.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,712.47 : 663,309.51 = 276,723.97 : x
  2. Step 2: Convert to fraction form
    480,712.47/663,309.51 = 276,723.97/x
  3. Step 3: Cross multiply
    480,712.47x = 663,309.51 × 276,723.97
  4. Step 4: Simplify right side
    480,712.47x = 183,553,640,945.96
  5. Step 5: Solve for x
    x = 183,553,640,945.96/480,712.47
  6. Step 6: Final answer
    x = 381,836.65

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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.