Home / 678,149.46-935,839.17-376,345.62

Finding the Fourth Proportional to 678,149.46, 935,839.17 and 376,345.62

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Solution

The fourth proportional to 678,149.46, 935,839.17 and 376,345.62 is: 519,353.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,149.46 : 935,839.17 = 376,345.62 : x
  2. Step 2: Convert to fraction form
    678,149.46/935,839.17 = 376,345.62/x
  3. Step 3: Cross multiply
    678,149.46x = 935,839.17 × 376,345.62
  4. Step 4: Simplify right side
    678,149.46x = 352,198,972,653.94
  5. Step 5: Solve for x
    x = 352,198,972,653.94/678,149.46
  6. Step 6: Final answer
    x = 519,353.02

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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.