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Finding the Fourth Proportional to 486,197.48, 671,020.15 and 271,351.38

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Solution

The fourth proportional to 486,197.48, 671,020.15 and 271,351.38 is: 374,502.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,197.48 : 671,020.15 = 271,351.38 : x
  2. Step 2: Convert to fraction form
    486,197.48/671,020.15 = 271,351.38/x
  3. Step 3: Cross multiply
    486,197.48x = 671,020.15 × 271,351.38
  4. Step 4: Simplify right side
    486,197.48x = 182,082,243,710.31
  5. Step 5: Solve for x
    x = 182,082,243,710.31/486,197.48
  6. Step 6: Final answer
    x = 374,502.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.