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Finding the Fourth Proportional to 483,604.80, 725,061.60 and 217,147.20

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Solution

The fourth proportional to 483,604.80, 725,061.60 and 217,147.20 is: 325,565.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,604.80 : 725,061.60 = 217,147.20 : x
  2. Step 2: Convert to fraction form
    483,604.80/725,061.60 = 217,147.20/x
  3. Step 3: Cross multiply
    483,604.80x = 725,061.60 × 217,147.20
  4. Step 4: Simplify right side
    483,604.80x = 157,445,096,267.52
  5. Step 5: Solve for x
    x = 157,445,096,267.52/483,604.80
  6. Step 6: Final answer
    x = 325,565.62

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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.