Home / 456,639.40-682,159.05-329,191.97

Finding the Fourth Proportional to 456,639.40, 682,159.05 and 329,191.97

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Solution

The fourth proportional to 456,639.40, 682,159.05 and 329,191.97 is: 491,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,639.40 : 682,159.05 = 329,191.97 : x
  2. Step 2: Convert to fraction form
    456,639.40/682,159.05 = 329,191.97/x
  3. Step 3: Cross multiply
    456,639.40x = 682,159.05 × 329,191.97
  4. Step 4: Simplify right side
    456,639.40x = 224,561,279,876.87
  5. Step 5: Solve for x
    x = 224,561,279,876.87/456,639.40
  6. Step 6: Final answer
    x = 491,769.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.