Home / 781,213.55-1,077,947.19-454,599.68

Finding the Fourth Proportional to 781,213.55, 1,077,947.19 and 454,599.68

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Solution

The fourth proportional to 781,213.55, 1,077,947.19 and 454,599.68 is: 627,273.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,213.55 : 1,077,947.19 = 454,599.68 : x
  2. Step 2: Convert to fraction form
    781,213.55/1,077,947.19 = 454,599.68/x
  3. Step 3: Cross multiply
    781,213.55x = 1,077,947.19 × 454,599.68
  4. Step 4: Simplify right side
    781,213.55x = 490,034,442,241.16
  5. Step 5: Solve for x
    x = 490,034,442,241.16/781,213.55
  6. Step 6: Final answer
    x = 627,273.36

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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.