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Finding the Fourth Proportional to 324,301.77, 486,478.58 and 113,986.89

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Solution

The fourth proportional to 324,301.77, 486,478.58 and 113,986.89 is: 170,989.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,301.77 : 486,478.58 = 113,986.89 : x
  2. Step 2: Convert to fraction form
    324,301.77/486,478.58 = 113,986.89/x
  3. Step 3: Cross multiply
    324,301.77x = 486,478.58 × 113,986.89
  4. Step 4: Simplify right side
    324,301.77x = 55,452,179,815.88
  5. Step 5: Solve for x
    x = 55,452,179,815.88/324,301.77
  6. Step 6: Final answer
    x = 170,989.45

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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.