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Finding the Fourth Proportional to 486,995.41, 730,493.11 and 132,009.42

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Solution

The fourth proportional to 486,995.41, 730,493.11 and 132,009.42 is: 198,014.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,995.41 : 730,493.11 = 132,009.42 : x
  2. Step 2: Convert to fraction form
    486,995.41/730,493.11 = 132,009.42/x
  3. Step 3: Cross multiply
    486,995.41x = 730,493.11 × 132,009.42
  4. Step 4: Simplify right side
    486,995.41x = 96,431,974,669.46
  5. Step 5: Solve for x
    x = 96,431,974,669.46/486,995.41
  6. Step 6: Final answer
    x = 198,014.13

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Double scale
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Similar ratio
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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.