Home / 625,111.20-862,651.35-338,630.94

Finding the Fourth Proportional to 625,111.20, 862,651.35 and 338,630.94

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Solution

The fourth proportional to 625,111.20, 862,651.35 and 338,630.94 is: 467,309.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,111.20 : 862,651.35 = 338,630.94 : x
  2. Step 2: Convert to fraction form
    625,111.20/862,651.35 = 338,630.94/x
  3. Step 3: Cross multiply
    625,111.20x = 862,651.35 × 338,630.94
  4. Step 4: Simplify right side
    625,111.20x = 292,120,437,542.77
  5. Step 5: Solve for x
    x = 292,120,437,542.77/625,111.20
  6. Step 6: Final answer
    x = 467,309.56

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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.