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Finding the Fourth Proportional to 498,232.50, 687,575.43 and 271,892.58

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Solution

The fourth proportional to 498,232.50, 687,575.43 and 271,892.58 is: 375,219.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,232.50 : 687,575.43 = 271,892.58 : x
  2. Step 2: Convert to fraction form
    498,232.50/687,575.43 = 271,892.58/x
  3. Step 3: Cross multiply
    498,232.50x = 687,575.43 × 271,892.58
  4. Step 4: Simplify right side
    498,232.50x = 186,946,657,607.31
  5. Step 5: Solve for x
    x = 186,946,657,607.31/498,232.50
  6. Step 6: Final answer
    x = 375,219.72

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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.