Home / 654,953.31-982,373.68-398,719.38

Finding the Fourth Proportional to 654,953.31, 982,373.68 and 398,719.38

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Solution

The fourth proportional to 654,953.31, 982,373.68 and 398,719.38 is: 598,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,953.31 : 982,373.68 = 398,719.38 : x
  2. Step 2: Convert to fraction form
    654,953.31/982,373.68 = 398,719.38/x
  3. Step 3: Cross multiply
    654,953.31x = 982,373.68 × 398,719.38
  4. Step 4: Simplify right side
    654,953.31x = 391,691,420,702.85
  5. Step 5: Solve for x
    x = 391,691,420,702.85/654,953.31
  6. Step 6: Final answer
    x = 598,044.80

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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.