Home / 447,690.57-671,562.18-127,817.85

Finding the Fourth Proportional to 447,690.57, 671,562.18 and 127,817.85

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Solution

The fourth proportional to 447,690.57, 671,562.18 and 127,817.85 is: 191,734.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,690.57 : 671,562.18 = 127,817.85 : x
  2. Step 2: Convert to fraction form
    447,690.57/671,562.18 = 127,817.85/x
  3. Step 3: Cross multiply
    447,690.57x = 671,562.18 × 127,817.85
  4. Step 4: Simplify right side
    447,690.57x = 85,837,633,988.91
  5. Step 5: Solve for x
    x = 85,837,633,988.91/447,690.57
  6. Step 6: Final answer
    x = 191,734.29

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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.