Home / 681,785.46-940,895.97-379,981.62

Finding the Fourth Proportional to 681,785.46, 940,895.97 and 379,981.62

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Solution

The fourth proportional to 681,785.46, 940,895.97 and 379,981.62 is: 524,392.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,785.46 : 940,895.97 = 379,981.62 : x
  2. Step 2: Convert to fraction form
    681,785.46/940,895.97 = 379,981.62/x
  3. Step 3: Cross multiply
    681,785.46x = 940,895.97 × 379,981.62
  4. Step 4: Simplify right side
    681,785.46x = 357,523,174,932.07
  5. Step 5: Solve for x
    x = 357,523,174,932.07/681,785.46
  6. Step 6: Final answer
    x = 524,392.49

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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.