Home / 642,576.24-886,760.46-356,101.11

Finding the Fourth Proportional to 642,576.24, 886,760.46 and 356,101.11

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Solution

The fourth proportional to 642,576.24, 886,760.46 and 356,101.11 is: 491,422.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,576.24 : 886,760.46 = 356,101.11 : x
  2. Step 2: Convert to fraction form
    642,576.24/886,760.46 = 356,101.11/x
  3. Step 3: Cross multiply
    642,576.24x = 886,760.46 × 356,101.11
  4. Step 4: Simplify right side
    642,576.24x = 315,776,384,110.11
  5. Step 5: Solve for x
    x = 315,776,384,110.11/642,576.24
  6. Step 6: Final answer
    x = 491,422.44

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1.5x scale

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.