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Finding the Fourth Proportional to 625,910.26, 939,022.72 and 289,189.20

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Solution

The fourth proportional to 625,910.26, 939,022.72 and 289,189.20 is: 433,856.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,910.26 : 939,022.72 = 289,189.20 : x
  2. Step 2: Convert to fraction form
    625,910.26/939,022.72 = 289,189.20/x
  3. Step 3: Cross multiply
    625,910.26x = 939,022.72 × 289,189.20
  4. Step 4: Simplify right side
    625,910.26x = 271,555,229,178.62
  5. Step 5: Solve for x
    x = 271,555,229,178.62/625,910.26
  6. Step 6: Final answer
    x = 433,856.49

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1.5x scale

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.