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Finding the Fourth Proportional to 475,791.90, 656,664.75 and 271,885.74

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Solution

The fourth proportional to 475,791.90, 656,664.75 and 271,885.74 is: 375,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,791.90 : 656,664.75 = 271,885.74 : x
  2. Step 2: Convert to fraction form
    475,791.90/656,664.75 = 271,885.74/x
  3. Step 3: Cross multiply
    475,791.90x = 656,664.75 × 271,885.74
  4. Step 4: Simplify right side
    475,791.90x = 178,537,781,485.67
  5. Step 5: Solve for x
    x = 178,537,781,485.67/475,791.90
  6. Step 6: Final answer
    x = 375,243.42

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1.5x scale

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.