Home / 817,314.22-1,127,872.11-454,738.78

Finding the Fourth Proportional to 817,314.22, 1,127,872.11 and 454,738.78

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Solution

The fourth proportional to 817,314.22, 1,127,872.11 and 454,738.78 is: 627,527.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,314.22 : 1,127,872.11 = 454,738.78 : x
  2. Step 2: Convert to fraction form
    817,314.22/1,127,872.11 = 454,738.78/x
  3. Step 3: Cross multiply
    817,314.22x = 1,127,872.11 × 454,738.78
  4. Step 4: Simplify right side
    817,314.22x = 512,887,187,297.43
  5. Step 5: Solve for x
    x = 512,887,187,297.43/817,314.22
  6. Step 6: Final answer
    x = 627,527.55

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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.