Home / 461,129.12-691,765.20-194,890.76

Finding the Fourth Proportional to 461,129.12, 691,765.20 and 194,890.76

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Solution

The fourth proportional to 461,129.12, 691,765.20 and 194,890.76 is: 292,366.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,129.12 : 691,765.20 = 194,890.76 : x
  2. Step 2: Convert to fraction form
    461,129.12/691,765.20 = 194,890.76/x
  3. Step 3: Cross multiply
    461,129.12x = 691,765.20 × 194,890.76
  4. Step 4: Simplify right side
    461,129.12x = 134,818,645,569.55
  5. Step 5: Solve for x
    x = 134,818,645,569.55/461,129.12
  6. Step 6: Final answer
    x = 292,366.37

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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.