Home / 681,453.57-940,412.12-375,540.92

Finding the Fourth Proportional to 681,453.57, 940,412.12 and 375,540.92

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Solution

The fourth proportional to 681,453.57, 940,412.12 and 375,540.92 is: 518,249.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,453.57 : 940,412.12 = 375,540.92 : x
  2. Step 2: Convert to fraction form
    681,453.57/940,412.12 = 375,540.92/x
  3. Step 3: Cross multiply
    681,453.57x = 940,412.12 × 375,540.92
  4. Step 4: Simplify right side
    681,453.57x = 353,163,226,144.19
  5. Step 5: Solve for x
    x = 353,163,226,144.19/681,453.57
  6. Step 6: Final answer
    x = 518,249.87

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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.