Home / 286,153.13-394,892.85-178,785.42

Finding the Fourth Proportional to 286,153.13, 394,892.85 and 178,785.42

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Solution

The fourth proportional to 286,153.13, 394,892.85 and 178,785.42 is: 246,724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,153.13 : 394,892.85 = 178,785.42 : x
  2. Step 2: Convert to fraction form
    286,153.13/394,892.85 = 178,785.42/x
  3. Step 3: Cross multiply
    286,153.13x = 394,892.85 × 178,785.42
  4. Step 4: Simplify right side
    286,153.13x = 70,601,084,042.25
  5. Step 5: Solve for x
    x = 70,601,084,042.25/286,153.13
  6. Step 6: Final answer
    x = 246,724.84

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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.