Home / 428,905.01-591,959.60-237,979.91

Finding the Fourth Proportional to 428,905.01, 591,959.60 and 237,979.91

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Solution

The fourth proportional to 428,905.01, 591,959.60 and 237,979.91 is: 328,451.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,905.01 : 591,959.60 = 237,979.91 : x
  2. Step 2: Convert to fraction form
    428,905.01/591,959.60 = 237,979.91/x
  3. Step 3: Cross multiply
    428,905.01x = 591,959.60 × 237,979.91
  4. Step 4: Simplify right side
    428,905.01x = 140,874,488,181.94
  5. Step 5: Solve for x
    x = 140,874,488,181.94/428,905.01
  6. Step 6: Final answer
    x = 328,451.49

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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.