Home / 443,039.32-611,408.10-252,080.20

Finding the Fourth Proportional to 443,039.32, 611,408.10 and 252,080.20

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Solution

The fourth proportional to 443,039.32, 611,408.10 and 252,080.20 is: 347,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,039.32 : 611,408.10 = 252,080.20 : x
  2. Step 2: Convert to fraction form
    443,039.32/611,408.10 = 252,080.20/x
  3. Step 3: Cross multiply
    443,039.32x = 611,408.10 × 252,080.20
  4. Step 4: Simplify right side
    443,039.32x = 154,123,876,129.62
  5. Step 5: Solve for x
    x = 154,123,876,129.62/443,039.32
  6. Step 6: Final answer
    x = 347,878.55

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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.