Home / 2,612,445.19-3,912,701.65-1,247,179.25

Finding the Fourth Proportional to 2,612,445.19, 3,912,701.65 and 1,247,179.25

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Solution

The fourth proportional to 2,612,445.19, 3,912,701.65 and 1,247,179.25 is: 1,867,920.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,445.19 : 3,912,701.65 = 1,247,179.25 : x
  2. Step 2: Convert to fraction form
    2,612,445.19/3,912,701.65 = 1,247,179.25/x
  3. Step 3: Cross multiply
    2,612,445.19x = 3,912,701.65 × 1,247,179.25
  4. Step 4: Simplify right side
    2,612,445.19x = 4,879,840,315,984.57
  5. Step 5: Solve for x
    x = 4,879,840,315,984.57/2,612,445.19
  6. Step 6: Final answer
    x = 1,867,920.65

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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.