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Finding the Fourth Proportional to 313,616.20, 469,272.30 and 230,672.20

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Solution

The fourth proportional to 313,616.20, 469,272.30 and 230,672.20 is: 345,160.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,616.20 : 469,272.30 = 230,672.20 : x
  2. Step 2: Convert to fraction form
    313,616.20/469,272.30 = 230,672.20/x
  3. Step 3: Cross multiply
    313,616.20x = 469,272.30 × 230,672.20
  4. Step 4: Simplify right side
    313,616.20x = 108,248,073,840.06
  5. Step 5: Solve for x
    x = 108,248,073,840.06/313,616.20
  6. Step 6: Final answer
    x = 345,160.98

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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.