Home / 681,245.16-940,118.60-394,931.24

Finding the Fourth Proportional to 681,245.16, 940,118.60 and 394,931.24

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Solution

The fourth proportional to 681,245.16, 940,118.60 and 394,931.24 is: 545,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,245.16 : 940,118.60 = 394,931.24 : x
  2. Step 2: Convert to fraction form
    681,245.16/940,118.60 = 394,931.24/x
  3. Step 3: Cross multiply
    681,245.16x = 940,118.60 × 394,931.24
  4. Step 4: Simplify right side
    681,245.16x = 371,282,204,445.06
  5. Step 5: Solve for x
    x = 371,282,204,445.06/681,245.16
  6. Step 6: Final answer
    x = 545,005.27

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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.