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Finding the Fourth Proportional to 3,936,761.05, 5,905,141.65 and 944,945.05

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Solution

The fourth proportional to 3,936,761.05, 5,905,141.65 and 944,945.05 is: 1,417,417.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936,761.05 : 5,905,141.65 = 944,945.05 : x
  2. Step 2: Convert to fraction form
    3,936,761.05/5,905,141.65 = 944,945.05/x
  3. Step 3: Cross multiply
    3,936,761.05x = 5,905,141.65 × 944,945.05
  4. Step 4: Simplify right side
    3,936,761.05x = 5,580,034,371,716.33
  5. Step 5: Solve for x
    x = 5,580,034,371,716.33/3,936,761.05
  6. Step 6: Final answer
    x = 1,417,417.59

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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.