Home / 439,010.06-658,440.57-123,392.78

Finding the Fourth Proportional to 439,010.06, 658,440.57 and 123,392.78

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Solution

The fourth proportional to 439,010.06, 658,440.57 and 123,392.78 is: 185,068.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,010.06 : 658,440.57 = 123,392.78 : x
  2. Step 2: Convert to fraction form
    439,010.06/658,440.57 = 123,392.78/x
  3. Step 3: Cross multiply
    439,010.06x = 658,440.57 × 123,392.78
  4. Step 4: Simplify right side
    439,010.06x = 81,246,812,397.08
  5. Step 5: Solve for x
    x = 81,246,812,397.08/439,010.06
  6. Step 6: Final answer
    x = 185,068.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.