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Finding the Fourth Proportional to 486,616.83, 671,532.66 and 271,765.04

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Solution

The fourth proportional to 486,616.83, 671,532.66 and 271,765.04 is: 375,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,616.83 : 671,532.66 = 271,765.04 : x
  2. Step 2: Convert to fraction form
    486,616.83/671,532.66 = 271,765.04/x
  3. Step 3: Cross multiply
    486,616.83x = 671,532.66 × 271,765.04
  4. Step 4: Simplify right side
    486,616.83x = 182,499,096,848.54
  5. Step 5: Solve for x
    x = 182,499,096,848.54/486,616.83
  6. Step 6: Final answer
    x = 375,036.55

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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.