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Finding the Fourth Proportional to 324,007.20, 486,010.80 and 234,842.40

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Solution

The fourth proportional to 324,007.20, 486,010.80 and 234,842.40 is: 352,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,007.20 : 486,010.80 = 234,842.40 : x
  2. Step 2: Convert to fraction form
    324,007.20/486,010.80 = 234,842.40/x
  3. Step 3: Cross multiply
    324,007.20x = 486,010.80 × 234,842.40
  4. Step 4: Simplify right side
    324,007.20x = 114,135,942,697.92
  5. Step 5: Solve for x
    x = 114,135,942,697.92/324,007.20
  6. Step 6: Final answer
    x = 352,263.60

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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.