Home / 658,186.71-987,084.44-279,101.85

Finding the Fourth Proportional to 658,186.71, 987,084.44 and 279,101.85

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Solution

The fourth proportional to 658,186.71, 987,084.44 and 279,101.85 is: 418,569.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,186.71 : 987,084.44 = 279,101.85 : x
  2. Step 2: Convert to fraction form
    658,186.71/987,084.44 = 279,101.85/x
  3. Step 3: Cross multiply
    658,186.71x = 987,084.44 × 279,101.85
  4. Step 4: Simplify right side
    658,186.71x = 275,497,091,914.71
  5. Step 5: Solve for x
    x = 275,497,091,914.71/658,186.71
  6. Step 6: Final answer
    x = 418,569.82

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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.