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Finding the Fourth Proportional to 332,610.80, 498,916.20 and 122,221.40

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Solution

The fourth proportional to 332,610.80, 498,916.20 and 122,221.40 is: 183,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,610.80 : 498,916.20 = 122,221.40 : x
  2. Step 2: Convert to fraction form
    332,610.80/498,916.20 = 122,221.40/x
  3. Step 3: Cross multiply
    332,610.80x = 498,916.20 × 122,221.40
  4. Step 4: Simplify right side
    332,610.80x = 60,978,236,446.68
  5. Step 5: Solve for x
    x = 60,978,236,446.68/332,610.80
  6. Step 6: Final answer
    x = 183,332.10

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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.