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Finding the Fourth Proportional to 457,610.46, 686,419.74 and 187,886.94

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Solution

The fourth proportional to 457,610.46, 686,419.74 and 187,886.94 is: 281,832.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,610.46 : 686,419.74 = 187,886.94 : x
  2. Step 2: Convert to fraction form
    457,610.46/686,419.74 = 187,886.94/x
  3. Step 3: Cross multiply
    457,610.46x = 686,419.74 × 187,886.94
  4. Step 4: Simplify right side
    457,610.46x = 128,969,304,504.20
  5. Step 5: Solve for x
    x = 128,969,304,504.20/457,610.46
  6. Step 6: Final answer
    x = 281,832.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.