Home / 428,516.76-591,340.31-234,917.84

Finding the Fourth Proportional to 428,516.76, 591,340.31 and 234,917.84

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Solution

The fourth proportional to 428,516.76, 591,340.31 and 234,917.84 is: 324,179.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,516.76 : 591,340.31 = 234,917.84 : x
  2. Step 2: Convert to fraction form
    428,516.76/591,340.31 = 234,917.84/x
  3. Step 3: Cross multiply
    428,516.76x = 591,340.31 × 234,917.84
  4. Step 4: Simplify right side
    428,516.76x = 138,916,387,766.26
  5. Step 5: Solve for x
    x = 138,916,387,766.26/428,516.76
  6. Step 6: Final answer
    x = 324,179.59

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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.