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Finding the Fourth Proportional to 324,613.63, 486,902.22 and 87,938.92

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Solution

The fourth proportional to 324,613.63, 486,902.22 and 87,938.92 is: 131,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,613.63 : 486,902.22 = 87,938.92 : x
  2. Step 2: Convert to fraction form
    324,613.63/486,902.22 = 87,938.92/x
  3. Step 3: Cross multiply
    324,613.63x = 486,902.22 × 87,938.92
  4. Step 4: Simplify right side
    324,613.63x = 42,817,655,372.40
  5. Step 5: Solve for x
    x = 42,817,655,372.40/324,613.63
  6. Step 6: Final answer
    x = 131,903.44

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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.