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Finding the Fourth Proportional to 625,195.22, 862,770.30 and 338,715.30

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Solution

The fourth proportional to 625,195.22, 862,770.30 and 338,715.30 is: 467,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,195.22 : 862,770.30 = 338,715.30 : x
  2. Step 2: Convert to fraction form
    625,195.22/862,770.30 = 338,715.30/x
  3. Step 3: Cross multiply
    625,195.22x = 862,770.30 × 338,715.30
  4. Step 4: Simplify right side
    625,195.22x = 292,233,500,995.59
  5. Step 5: Solve for x
    x = 292,233,500,995.59/625,195.22
  6. Step 6: Final answer
    x = 467,427.60

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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.