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Finding the Fourth Proportional to 265,544.70, 398,317.05 and 252,422.70

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Solution

The fourth proportional to 265,544.70, 398,317.05 and 252,422.70 is: 378,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,544.70 : 398,317.05 = 252,422.70 : x
  2. Step 2: Convert to fraction form
    265,544.70/398,317.05 = 252,422.70/x
  3. Step 3: Cross multiply
    265,544.70x = 398,317.05 × 252,422.70
  4. Step 4: Simplify right side
    265,544.70x = 100,544,265,217.04
  5. Step 5: Solve for x
    x = 100,544,265,217.04/265,544.70
  6. Step 6: Final answer
    x = 378,634.05

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Similar ratio
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1.5x scale

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.