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Finding the Fourth Proportional to 324,007.60, 486,529.80 and 245,210.80

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Solution

The fourth proportional to 324,007.60, 486,529.80 and 245,210.80 is: 368,208.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,007.60 : 486,529.80 = 245,210.80 : x
  2. Step 2: Convert to fraction form
    324,007.60/486,529.80 = 245,210.80/x
  3. Step 3: Cross multiply
    324,007.60x = 486,529.80 × 245,210.80
  4. Step 4: Simplify right side
    324,007.60x = 119,302,361,481.84
  5. Step 5: Solve for x
    x = 119,302,361,481.84/324,007.60
  6. Step 6: Final answer
    x = 368,208.53

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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.