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Finding the Fourth Proportional to 625,057.25, 862,576.16 and 338,578.02

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Solution

The fourth proportional to 625,057.25, 862,576.16 and 338,578.02 is: 467,236.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,057.25 : 862,576.16 = 338,578.02 : x
  2. Step 2: Convert to fraction form
    625,057.25/862,576.16 = 338,578.02/x
  3. Step 3: Cross multiply
    625,057.25x = 862,576.16 × 338,578.02
  4. Step 4: Simplify right side
    625,057.25x = 292,049,326,659.11
  5. Step 5: Solve for x
    x = 292,049,326,659.11/625,057.25
  6. Step 6: Final answer
    x = 467,236.13

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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.