Home / 428,945.64-591,943.17-237,959.03

Finding the Fourth Proportional to 428,945.64, 591,943.17 and 237,959.03

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Solution

The fourth proportional to 428,945.64, 591,943.17 and 237,959.03 is: 328,382.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,945.64 : 591,943.17 = 237,959.03 : x
  2. Step 2: Convert to fraction form
    428,945.64/591,943.17 = 237,959.03/x
  3. Step 3: Cross multiply
    428,945.64x = 591,943.17 × 237,959.03
  4. Step 4: Simplify right side
    428,945.64x = 140,858,221,590.85
  5. Step 5: Solve for x
    x = 140,858,221,590.85/428,945.64
  6. Step 6: Final answer
    x = 328,382.46

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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.