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Finding the Fourth Proportional to 265,168.80, 397,315.80 and 225,802.80

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Solution

The fourth proportional to 265,168.80, 397,315.80 and 225,802.80 is: 338,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,168.80 : 397,315.80 = 225,802.80 : x
  2. Step 2: Convert to fraction form
    265,168.80/397,315.80 = 225,802.80/x
  3. Step 3: Cross multiply
    265,168.80x = 397,315.80 × 225,802.80
  4. Step 4: Simplify right side
    265,168.80x = 89,715,020,124.24
  5. Step 5: Solve for x
    x = 89,715,020,124.24/265,168.80
  6. Step 6: Final answer
    x = 338,331.73

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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.