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Finding the Fourth Proportional to 574,456.60, 861,684.90 and 325,624.60

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Solution

The fourth proportional to 574,456.60, 861,684.90 and 325,624.60 is: 488,436.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,456.60 : 861,684.90 = 325,624.60 : x
  2. Step 2: Convert to fraction form
    574,456.60/861,684.90 = 325,624.60/x
  3. Step 3: Cross multiply
    574,456.60x = 861,684.90 × 325,624.60
  4. Step 4: Simplify right side
    574,456.60x = 280,585,800,888.54
  5. Step 5: Solve for x
    x = 280,585,800,888.54/574,456.60
  6. Step 6: Final answer
    x = 488,436.90

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Similar ratio
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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.