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Finding the Fourth Proportional to 482,007.20, 723,010.80 and 321,648.80

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Solution

The fourth proportional to 482,007.20, 723,010.80 and 321,648.80 is: 482,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,007.20 : 723,010.80 = 321,648.80 : x
  2. Step 2: Convert to fraction form
    482,007.20/723,010.80 = 321,648.80/x
  3. Step 3: Cross multiply
    482,007.20x = 723,010.80 × 321,648.80
  4. Step 4: Simplify right side
    482,007.20x = 232,555,556,207.04
  5. Step 5: Solve for x
    x = 232,555,556,207.04/482,007.20
  6. Step 6: Final answer
    x = 482,473.20

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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.