Home / 516,332.25-712,605.33-289,977.75

Finding the Fourth Proportional to 516,332.25, 712,605.33 and 289,977.75

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Solution

The fourth proportional to 516,332.25, 712,605.33 and 289,977.75 is: 400,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,332.25 : 712,605.33 = 289,977.75 : x
  2. Step 2: Convert to fraction form
    516,332.25/712,605.33 = 289,977.75/x
  3. Step 3: Cross multiply
    516,332.25x = 712,605.33 × 289,977.75
  4. Step 4: Simplify right side
    516,332.25x = 206,639,690,231.41
  5. Step 5: Solve for x
    x = 206,639,690,231.41/516,332.25
  6. Step 6: Final answer
    x = 400,206.82

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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.