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Finding the Fourth Proportional to 625,189.76, 936,657.12 and 384,885.44

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Solution

The fourth proportional to 625,189.76, 936,657.12 and 384,885.44 is: 576,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,189.76 : 936,657.12 = 384,885.44 : x
  2. Step 2: Convert to fraction form
    625,189.76/936,657.12 = 384,885.44/x
  3. Step 3: Cross multiply
    625,189.76x = 936,657.12 × 384,885.44
  4. Step 4: Simplify right side
    625,189.76x = 360,505,687,760.33
  5. Step 5: Solve for x
    x = 360,505,687,760.33/625,189.76
  6. Step 6: Final answer
    x = 576,634.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.