Home / 681,249.66-940,124.82-394,935.72

Finding the Fourth Proportional to 681,249.66, 940,124.82 and 394,935.72

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Solution

The fourth proportional to 681,249.66, 940,124.82 and 394,935.72 is: 545,011.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,249.66 : 940,124.82 = 394,935.72 : x
  2. Step 2: Convert to fraction form
    681,249.66/940,124.82 = 394,935.72/x
  3. Step 3: Cross multiply
    681,249.66x = 940,124.82 × 394,935.72
  4. Step 4: Simplify right side
    681,249.66x = 371,288,872,676.57
  5. Step 5: Solve for x
    x = 371,288,872,676.57/681,249.66
  6. Step 6: Final answer
    x = 545,011.46

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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.