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Finding the Fourth Proportional to 498,337.17, 687,661.16 and 277,557.62

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Solution

The fourth proportional to 498,337.17, 687,661.16 and 277,557.62 is: 383,004.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,337.17 : 687,661.16 = 277,557.62 : x
  2. Step 2: Convert to fraction form
    498,337.17/687,661.16 = 277,557.62/x
  3. Step 3: Cross multiply
    498,337.17x = 687,661.16 × 277,557.62
  4. Step 4: Simplify right side
    498,337.17x = 190,865,590,109.95
  5. Step 5: Solve for x
    x = 190,865,590,109.95/498,337.17
  6. Step 6: Final answer
    x = 383,004.92

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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.