Home / 498,188.14-687,514.78-283,359.10

Finding the Fourth Proportional to 498,188.14, 687,514.78 and 283,359.10

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Solution

The fourth proportional to 498,188.14, 687,514.78 and 283,359.10 is: 391,044.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,188.14 : 687,514.78 = 283,359.10 : x
  2. Step 2: Convert to fraction form
    498,188.14/687,514.78 = 283,359.10/x
  3. Step 3: Cross multiply
    498,188.14x = 687,514.78 × 283,359.10
  4. Step 4: Simplify right side
    498,188.14x = 194,813,569,297.50
  5. Step 5: Solve for x
    x = 194,813,569,297.50/498,188.14
  6. Step 6: Final answer
    x = 391,044.17

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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.