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Finding the Fourth Proportional to 750,906.22, 1,036,251.64 and 406,745.90

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Solution

The fourth proportional to 750,906.22, 1,036,251.64 and 406,745.90 is: 561,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,906.22 : 1,036,251.64 = 406,745.90 : x
  2. Step 2: Convert to fraction form
    750,906.22/1,036,251.64 = 406,745.90/x
  3. Step 3: Cross multiply
    750,906.22x = 1,036,251.64 × 406,745.90
  4. Step 4: Simplify right side
    750,906.22x = 421,491,105,938.28
  5. Step 5: Solve for x
    x = 421,491,105,938.28/750,906.22
  6. Step 6: Final answer
    x = 561,309.91

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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.