Home / 2,782,401.60-4,172,565.60-1,938,446.40

Finding the Fourth Proportional to 2,782,401.60, 4,172,565.60 and 1,938,446.40

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Solution

The fourth proportional to 2,782,401.60, 4,172,565.60 and 1,938,446.40 is: 2,906,947.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782,401.60 : 4,172,565.60 = 1,938,446.40 : x
  2. Step 2: Convert to fraction form
    2,782,401.60/4,172,565.60 = 1,938,446.40/x
  3. Step 3: Cross multiply
    2,782,401.60x = 4,172,565.60 × 1,938,446.40
  4. Step 4: Simplify right side
    2,782,401.60x = 8,088,294,766,083.84
  5. Step 5: Solve for x
    x = 8,088,294,766,083.84/2,782,401.60
  6. Step 6: Final answer
    x = 2,906,947.28

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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.