Home / 678,126.82-935,826.88-372,231.82

Finding the Fourth Proportional to 678,126.82, 935,826.88 and 372,231.82

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Solution

The fourth proportional to 678,126.82, 935,826.88 and 372,231.82 is: 513,686.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,126.82 : 935,826.88 = 372,231.82 : x
  2. Step 2: Convert to fraction form
    678,126.82/935,826.88 = 372,231.82/x
  3. Step 3: Cross multiply
    678,126.82x = 935,826.88 × 372,231.82
  4. Step 4: Simplify right side
    678,126.82x = 348,344,542,747.32
  5. Step 5: Solve for x
    x = 348,344,542,747.32/678,126.82
  6. Step 6: Final answer
    x = 513,686.43

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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.