Home / 516,761.20-775,091.64-156,935.14

Finding the Fourth Proportional to 516,761.20, 775,091.64 and 156,935.14

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Solution

The fourth proportional to 516,761.20, 775,091.64 and 156,935.14 is: 235,387.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,761.20 : 775,091.64 = 156,935.14 : x
  2. Step 2: Convert to fraction form
    516,761.20/775,091.64 = 156,935.14/x
  3. Step 3: Cross multiply
    516,761.20x = 775,091.64 × 156,935.14
  4. Step 4: Simplify right side
    516,761.20x = 121,639,115,036.23
  5. Step 5: Solve for x
    x = 121,639,115,036.23/516,761.20
  6. Step 6: Final answer
    x = 235,387.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.