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Finding the Fourth Proportional to 498,340.17, 687,665.29 and 277,560.62

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Solution

The fourth proportional to 498,340.17, 687,665.29 and 277,560.62 is: 383,009.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,340.17 : 687,665.29 = 277,560.62 : x
  2. Step 2: Convert to fraction form
    498,340.17/687,665.29 = 277,560.62/x
  3. Step 3: Cross multiply
    498,340.17x = 687,665.29 × 277,560.62
  4. Step 4: Simplify right side
    498,340.17x = 190,868,804,244.88
  5. Step 5: Solve for x
    x = 190,868,804,244.88/498,340.17
  6. Step 6: Final answer
    x = 383,009.07

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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.