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Finding the Fourth Proportional to 625,071.26, 862,602.49 and 338,591.35

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Solution

The fourth proportional to 625,071.26, 862,602.49 and 338,591.35 is: 467,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,071.26 : 862,602.49 = 338,591.35 : x
  2. Step 2: Convert to fraction form
    625,071.26/862,602.49 = 338,591.35/x
  3. Step 3: Cross multiply
    625,071.26x = 862,602.49 × 338,591.35
  4. Step 4: Simplify right side
    625,071.26x = 292,069,737,753.00
  5. Step 5: Solve for x
    x = 292,069,737,753.00/625,071.26
  6. Step 6: Final answer
    x = 467,258.30

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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.