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Finding the Fourth Proportional to 625,196.55, 862,772.09 and 338,716.63

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Solution

The fourth proportional to 625,196.55, 862,772.09 and 338,716.63 is: 467,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,196.55 : 862,772.09 = 338,716.63 : x
  2. Step 2: Convert to fraction form
    625,196.55/862,772.09 = 338,716.63/x
  3. Step 3: Cross multiply
    625,196.55x = 862,772.09 × 338,716.63
  4. Step 4: Simplify right side
    625,196.55x = 292,235,250,932.34
  5. Step 5: Solve for x
    x = 292,235,250,932.34/625,196.55
  6. Step 6: Final answer
    x = 467,429.40

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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.