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Finding the Fourth Proportional to 416,290.66, 574,481.11 and 225,304.05

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Solution

The fourth proportional to 416,290.66, 574,481.11 and 225,304.05 is: 310,919.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,290.66 : 574,481.11 = 225,304.05 : x
  2. Step 2: Convert to fraction form
    416,290.66/574,481.11 = 225,304.05/x
  3. Step 3: Cross multiply
    416,290.66x = 574,481.11 × 225,304.05
  4. Step 4: Simplify right side
    416,290.66x = 129,432,920,731.50
  5. Step 5: Solve for x
    x = 129,432,920,731.50/416,290.66
  6. Step 6: Final answer
    x = 310,919.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.