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Finding the Fourth Proportional to 503,489.55, 694,332.63 and 338,291.11

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Solution

The fourth proportional to 503,489.55, 694,332.63 and 338,291.11 is: 466,517.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,489.55 : 694,332.63 = 338,291.11 : x
  2. Step 2: Convert to fraction form
    503,489.55/694,332.63 = 338,291.11/x
  3. Step 3: Cross multiply
    503,489.55x = 694,332.63 × 338,291.11
  4. Step 4: Simplify right side
    503,489.55x = 234,886,555,149.15
  5. Step 5: Solve for x
    x = 234,886,555,149.15/503,489.55
  6. Step 6: Final answer
    x = 466,517.24

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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.