Home / 678,738.29-936,633.17-376,951.73

Finding the Fourth Proportional to 678,738.29, 936,633.17 and 376,951.73

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Solution

The fourth proportional to 678,738.29, 936,633.17 and 376,951.73 is: 520,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,738.29 : 936,633.17 = 376,951.73 : x
  2. Step 2: Convert to fraction form
    678,738.29/936,633.17 = 376,951.73/x
  3. Step 3: Cross multiply
    678,738.29x = 936,633.17 × 376,951.73
  4. Step 4: Simplify right side
    678,738.29x = 353,065,490,066.10
  5. Step 5: Solve for x
    x = 353,065,490,066.10/678,738.29
  6. Step 6: Final answer
    x = 520,179.13

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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.