Home / 516,081.16-712,178.22-286,631.56

Finding the Fourth Proportional to 516,081.16, 712,178.22 and 286,631.56

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Solution

The fourth proportional to 516,081.16, 712,178.22 and 286,631.56 is: 395,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,081.16 : 712,178.22 = 286,631.56 : x
  2. Step 2: Convert to fraction form
    516,081.16/712,178.22 = 286,631.56/x
  3. Step 3: Cross multiply
    516,081.16x = 712,178.22 × 286,631.56
  4. Step 4: Simplify right side
    516,081.16x = 204,132,754,196.62
  5. Step 5: Solve for x
    x = 204,132,754,196.62/516,081.16
  6. Step 6: Final answer
    x = 395,543.90

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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.