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Finding the Fourth Proportional to 265,234.40, 397,851.60 and 253,716.20

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Solution

The fourth proportional to 265,234.40, 397,851.60 and 253,716.20 is: 380,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,234.40 : 397,851.60 = 253,716.20 : x
  2. Step 2: Convert to fraction form
    265,234.40/397,851.60 = 253,716.20/x
  3. Step 3: Cross multiply
    265,234.40x = 397,851.60 × 253,716.20
  4. Step 4: Simplify right side
    265,234.40x = 100,941,396,115.92
  5. Step 5: Solve for x
    x = 100,941,396,115.92/265,234.40
  6. Step 6: Final answer
    x = 380,574.30

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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.