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Finding the Fourth Proportional to 498,061.44, 687,326.40 and 271,711.68

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Solution

The fourth proportional to 498,061.44, 687,326.40 and 271,711.68 is: 374,963.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,061.44 : 687,326.40 = 271,711.68 : x
  2. Step 2: Convert to fraction form
    498,061.44/687,326.40 = 271,711.68/x
  3. Step 3: Cross multiply
    498,061.44x = 687,326.40 × 271,711.68
  4. Step 4: Simplify right side
    498,061.44x = 186,754,610,852.35
  5. Step 5: Solve for x
    x = 186,754,610,852.35/498,061.44
  6. Step 6: Final answer
    x = 374,963.00

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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.