Home / 861,524.55-1,188,818.01-499,064.85

Finding the Fourth Proportional to 861,524.55, 1,188,818.01 and 499,064.85

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Solution

The fourth proportional to 861,524.55, 1,188,818.01 and 499,064.85 is: 688,659.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,524.55 : 1,188,818.01 = 499,064.85 : x
  2. Step 2: Convert to fraction form
    861,524.55/1,188,818.01 = 499,064.85/x
  3. Step 3: Cross multiply
    861,524.55x = 1,188,818.01 × 499,064.85
  4. Step 4: Simplify right side
    861,524.55x = 593,297,281,837.95
  5. Step 5: Solve for x
    x = 593,297,281,837.95/861,524.55
  6. Step 6: Final answer
    x = 688,659.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.