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Finding the Fourth Proportional to 486,001.49, 670,682.48 and 271,141.60

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Solution

The fourth proportional to 486,001.49, 670,682.48 and 271,141.60 is: 374,175.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,001.49 : 670,682.48 = 271,141.60 : x
  2. Step 2: Convert to fraction form
    486,001.49/670,682.48 = 271,141.60/x
  3. Step 3: Cross multiply
    486,001.49x = 670,682.48 × 271,141.60
  4. Step 4: Simplify right side
    486,001.49x = 181,849,919,363.46
  5. Step 5: Solve for x
    x = 181,849,919,363.46/486,001.49
  6. Step 6: Final answer
    x = 374,175.64

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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.