Home / 521,211.80-781,282.38-296,091.53

Finding the Fourth Proportional to 521,211.80, 781,282.38 and 296,091.53

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Solution

The fourth proportional to 521,211.80, 781,282.38 and 296,091.53 is: 443,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,211.80 : 781,282.38 = 296,091.53 : x
  2. Step 2: Convert to fraction form
    521,211.80/781,282.38 = 296,091.53/x
  3. Step 3: Cross multiply
    521,211.80x = 781,282.38 × 296,091.53
  4. Step 4: Simplify right side
    521,211.80x = 231,331,097,209.45
  5. Step 5: Solve for x
    x = 231,331,097,209.45/521,211.80
  6. Step 6: Final answer
    x = 443,833.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.