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Finding the Fourth Proportional to 324,101.70, 486,152.55 and 211,908.60

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Solution

The fourth proportional to 324,101.70, 486,152.55 and 211,908.60 is: 317,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,101.70 : 486,152.55 = 211,908.60 : x
  2. Step 2: Convert to fraction form
    324,101.70/486,152.55 = 211,908.60/x
  3. Step 3: Cross multiply
    324,101.70x = 486,152.55 × 211,908.60
  4. Step 4: Simplify right side
    324,101.70x = 103,019,906,256.93
  5. Step 5: Solve for x
    x = 103,019,906,256.93/324,101.70
  6. Step 6: Final answer
    x = 317,862.90

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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.