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Finding the Fourth Proportional to 1,972,890.59, 2,957,586.28 and 961,446.83

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Solution

The fourth proportional to 1,972,890.59, 2,957,586.28 and 961,446.83 is: 1,441,317.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972,890.59 : 2,957,586.28 = 961,446.83 : x
  2. Step 2: Convert to fraction form
    1,972,890.59/2,957,586.28 = 961,446.83/x
  3. Step 3: Cross multiply
    1,972,890.59x = 2,957,586.28 × 961,446.83
  4. Step 4: Simplify right side
    1,972,890.59x = 2,843,561,936,165.94
  5. Step 5: Solve for x
    x = 2,843,561,936,165.94/1,972,890.59
  6. Step 6: Final answer
    x = 1,441,317.61

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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.