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Finding the Fourth Proportional to 3,315,876.92, 4,972,450.99 and 1,267,294.13

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Solution

The fourth proportional to 3,315,876.92, 4,972,450.99 and 1,267,294.13 is: 1,900,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,876.92 : 4,972,450.99 = 1,267,294.13 : x
  2. Step 2: Convert to fraction form
    3,315,876.92/4,972,450.99 = 1,267,294.13/x
  3. Step 3: Cross multiply
    3,315,876.92x = 4,972,450.99 × 1,267,294.13
  4. Step 4: Simplify right side
    3,315,876.92x = 6,301,557,951,339.69
  5. Step 5: Solve for x
    x = 6,301,557,951,339.69/3,315,876.92
  6. Step 6: Final answer
    x = 1,900,419.74

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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.