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Finding the Fourth Proportional to 324,059.60, 486,089.40 and 113,718.80

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Solution

The fourth proportional to 324,059.60, 486,089.40 and 113,718.80 is: 170,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,059.60 : 486,089.40 = 113,718.80 : x
  2. Step 2: Convert to fraction form
    324,059.60/486,089.40 = 113,718.80/x
  3. Step 3: Cross multiply
    324,059.60x = 486,089.40 × 113,718.80
  4. Step 4: Simplify right side
    324,059.60x = 55,277,503,260.72
  5. Step 5: Solve for x
    x = 55,277,503,260.72/324,059.60
  6. Step 6: Final answer
    x = 170,578.20

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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.