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Finding the Fourth Proportional to 324,223.89, 486,401.45 and 113,878.23

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Solution

The fourth proportional to 324,223.89, 486,401.45 and 113,878.23 is: 170,840.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,223.89 : 486,401.45 = 113,878.23 : x
  2. Step 2: Convert to fraction form
    324,223.89/486,401.45 = 113,878.23/x
  3. Step 3: Cross multiply
    324,223.89x = 486,401.45 × 113,878.23
  4. Step 4: Simplify right side
    324,223.89x = 55,390,535,626.04
  5. Step 5: Solve for x
    x = 55,390,535,626.04/324,223.89
  6. Step 6: Final answer
    x = 170,840.39

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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.