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Finding the Fourth Proportional to 324,319.88, 486,455.82 and 113,959.88

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Solution

The fourth proportional to 324,319.88, 486,455.82 and 113,959.88 is: 170,931.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,319.88 : 486,455.82 = 113,959.88 : x
  2. Step 2: Convert to fraction form
    324,319.88/486,455.82 = 113,959.88/x
  3. Step 3: Cross multiply
    324,319.88x = 486,455.82 × 113,959.88
  4. Step 4: Simplify right side
    324,319.88x = 55,436,446,872.50
  5. Step 5: Solve for x
    x = 55,436,446,872.50/324,319.88
  6. Step 6: Final answer
    x = 170,931.39

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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.