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Finding the Fourth Proportional to 625,093.40, 862,633.02 and 338,613.50

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Solution

The fourth proportional to 625,093.40, 862,633.02 and 338,613.50 is: 467,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,093.40 : 862,633.02 = 338,613.50 : x
  2. Step 2: Convert to fraction form
    625,093.40/862,633.02 = 338,613.50/x
  3. Step 3: Cross multiply
    625,093.40x = 862,633.02 × 338,613.50
  4. Step 4: Simplify right side
    625,093.40x = 292,099,186,117.77
  5. Step 5: Solve for x
    x = 292,099,186,117.77/625,093.40
  6. Step 6: Final answer
    x = 467,288.87

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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.