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Finding the Fourth Proportional to 655,215.59, 982,775.97 and 206,064.93

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Solution

The fourth proportional to 655,215.59, 982,775.97 and 206,064.93 is: 309,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,215.59 : 982,775.97 = 206,064.93 : x
  2. Step 2: Convert to fraction form
    655,215.59/982,775.97 = 206,064.93/x
  3. Step 3: Cross multiply
    655,215.59x = 982,775.97 × 206,064.93
  4. Step 4: Simplify right side
    655,215.59x = 202,515,661,463.73
  5. Step 5: Solve for x
    x = 202,515,661,463.73/655,215.59
  6. Step 6: Final answer
    x = 309,082.49

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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.