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Finding the Fourth Proportional to 625,602.12, 938,205 and 226,190.04

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Solution

The fourth proportional to 625,602.12, 938,205 and 226,190.04 is: 339,213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,602.12 : 938,205 = 226,190.04 : x
  2. Step 2: Convert to fraction form
    625,602.12/938,205 = 226,190.04/x
  3. Step 3: Cross multiply
    625,602.12x = 938,205 × 226,190.04
  4. Step 4: Simplify right side
    625,602.12x = 212,212,626,478.20
  5. Step 5: Solve for x
    x = 212,212,626,478.20/625,602.12
  6. Step 6: Final answer
    x = 339,213.41

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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.