Home / 516,131.10-712,272.20-283,561.04

Finding the Fourth Proportional to 516,131.10, 712,272.20 and 283,561.04

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Solution

The fourth proportional to 516,131.10, 712,272.20 and 283,561.04 is: 391,320.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,131.10 : 712,272.20 = 283,561.04 : x
  2. Step 2: Convert to fraction form
    516,131.10/712,272.20 = 283,561.04/x
  3. Step 3: Cross multiply
    516,131.10x = 712,272.20 × 283,561.04
  4. Step 4: Simplify right side
    516,131.10x = 201,972,644,377.28
  5. Step 5: Solve for x
    x = 201,972,644,377.28/516,131.10
  6. Step 6: Final answer
    x = 391,320.43

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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.