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Finding the Fourth Proportional to 265,165.80, 397,311.30 and 225,799.80

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Solution

The fourth proportional to 265,165.80, 397,311.30 and 225,799.80 is: 338,327.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,165.80 : 397,311.30 = 225,799.80 : x
  2. Step 2: Convert to fraction form
    265,165.80/397,311.30 = 225,799.80/x
  3. Step 3: Cross multiply
    265,165.80x = 397,311.30 × 225,799.80
  4. Step 4: Simplify right side
    265,165.80x = 89,712,812,077.74
  5. Step 5: Solve for x
    x = 89,712,812,077.74/265,165.80
  6. Step 6: Final answer
    x = 338,327.24

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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.