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Finding the Fourth Proportional to 498,179.84, 687,545.76 and 277,439.36

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Solution

The fourth proportional to 498,179.84, 687,545.76 and 277,439.36 is: 382,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,179.84 : 687,545.76 = 277,439.36 : x
  2. Step 2: Convert to fraction form
    498,179.84/687,545.76 = 277,439.36/x
  3. Step 3: Cross multiply
    498,179.84x = 687,545.76 × 277,439.36
  4. Step 4: Simplify right side
    498,179.84x = 190,752,255,625.11
  5. Step 5: Solve for x
    x = 190,752,255,625.11/498,179.84
  6. Step 6: Final answer
    x = 382,898.38

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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.