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Finding the Fourth Proportional to 324,013.60, 486,538.80 and 245,216.80

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Solution

The fourth proportional to 324,013.60, 486,538.80 and 245,216.80 is: 368,217.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,013.60 : 486,538.80 = 245,216.80 : x
  2. Step 2: Convert to fraction form
    324,013.60/486,538.80 = 245,216.80/x
  3. Step 3: Cross multiply
    324,013.60x = 486,538.80 × 245,216.80
  4. Step 4: Simplify right side
    324,013.60x = 119,307,487,611.84
  5. Step 5: Solve for x
    x = 119,307,487,611.84/324,013.60
  6. Step 6: Final answer
    x = 368,217.53

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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.