Home / 658,491.40-987,780.30-185,192.20

Finding the Fourth Proportional to 658,491.40, 987,780.30 and 185,192.20

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Solution

The fourth proportional to 658,491.40, 987,780.30 and 185,192.20 is: 277,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,491.40 : 987,780.30 = 185,192.20 : x
  2. Step 2: Convert to fraction form
    658,491.40/987,780.30 = 185,192.20/x
  3. Step 3: Cross multiply
    658,491.40x = 987,780.30 × 185,192.20
  4. Step 4: Simplify right side
    658,491.40x = 182,929,206,873.66
  5. Step 5: Solve for x
    x = 182,929,206,873.66/658,491.40
  6. Step 6: Final answer
    x = 277,800.45

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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.