Home / 413,899.89-571,229.20-230,156.78

Finding the Fourth Proportional to 413,899.89, 571,229.20 and 230,156.78

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Solution

The fourth proportional to 413,899.89, 571,229.20 and 230,156.78 is: 317,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,899.89 : 571,229.20 = 230,156.78 : x
  2. Step 2: Convert to fraction form
    413,899.89/571,229.20 = 230,156.78/x
  3. Step 3: Cross multiply
    413,899.89x = 571,229.20 × 230,156.78
  4. Step 4: Simplify right side
    413,899.89x = 131,472,274,742.05
  5. Step 5: Solve for x
    x = 131,472,274,742.05/413,899.89
  6. Step 6: Final answer
    x = 317,642.69

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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.