Home / 681,234.16-940,120.08-379,433.20

Finding the Fourth Proportional to 681,234.16, 940,120.08 and 379,433.20

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Solution

The fourth proportional to 681,234.16, 940,120.08 and 379,433.20 is: 523,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,234.16 : 940,120.08 = 379,433.20 : x
  2. Step 2: Convert to fraction form
    681,234.16/940,120.08 = 379,433.20/x
  3. Step 3: Cross multiply
    681,234.16x = 940,120.08 × 379,433.20
  4. Step 4: Simplify right side
    681,234.16x = 356,712,770,338.66
  5. Step 5: Solve for x
    x = 356,712,770,338.66/681,234.16
  6. Step 6: Final answer
    x = 523,627.25

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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.