Home / 261,344.20-391,613.10-194,470.60

Finding the Fourth Proportional to 261,344.20, 391,613.10 and 194,470.60

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Solution

The fourth proportional to 261,344.20, 391,613.10 and 194,470.60 is: 291,405.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,344.20 : 391,613.10 = 194,470.60 : x
  2. Step 2: Convert to fraction form
    261,344.20/391,613.10 = 194,470.60/x
  3. Step 3: Cross multiply
    261,344.20x = 391,613.10 × 194,470.60
  4. Step 4: Simplify right side
    261,344.20x = 76,157,234,524.86
  5. Step 5: Solve for x
    x = 76,157,234,524.86/261,344.20
  6. Step 6: Final answer
    x = 291,405.87

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1.5x scale

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.