Home / 644,174.25-966,255.18-391,524.45

Finding the Fourth Proportional to 644,174.25, 966,255.18 and 391,524.45

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Solution

The fourth proportional to 644,174.25, 966,255.18 and 391,524.45 is: 587,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,174.25 : 966,255.18 = 391,524.45 : x
  2. Step 2: Convert to fraction form
    644,174.25/966,255.18 = 391,524.45/x
  3. Step 3: Cross multiply
    644,174.25x = 966,255.18 × 391,524.45
  4. Step 4: Simplify right side
    644,174.25x = 378,312,527,909.15
  5. Step 5: Solve for x
    x = 378,312,527,909.15/644,174.25
  6. Step 6: Final answer
    x = 587,282.91

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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.