Home / 2,138,256.16-2,950,793.32-1,278,816.38

Finding the Fourth Proportional to 2,138,256.16, 2,950,793.32 and 1,278,816.38

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Solution

The fourth proportional to 2,138,256.16, 2,950,793.32 and 1,278,816.38 is: 1,764,766.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,256.16 : 2,950,793.32 = 1,278,816.38 : x
  2. Step 2: Convert to fraction form
    2,138,256.16/2,950,793.32 = 1,278,816.38/x
  3. Step 3: Cross multiply
    2,138,256.16x = 2,950,793.32 × 1,278,816.38
  4. Step 4: Simplify right side
    2,138,256.16x = 3,773,522,831,610.58
  5. Step 5: Solve for x
    x = 3,773,522,831,610.58/2,138,256.16
  6. Step 6: Final answer
    x = 1,764,766.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.