Home / 516,336.25-712,610.85-289,981.75

Finding the Fourth Proportional to 516,336.25, 712,610.85 and 289,981.75

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Solution

The fourth proportional to 516,336.25, 712,610.85 and 289,981.75 is: 400,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,336.25 : 712,610.85 = 289,981.75 : x
  2. Step 2: Convert to fraction form
    516,336.25/712,610.85 = 289,981.75/x
  3. Step 3: Cross multiply
    516,336.25x = 712,610.85 × 289,981.75
  4. Step 4: Simplify right side
    516,336.25x = 206,644,141,351.99
  5. Step 5: Solve for x
    x = 206,644,141,351.99/516,336.25
  6. Step 6: Final answer
    x = 400,212.34

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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.