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Finding the Fourth Proportional to 1,106.74, 1,660.09 and 337.24

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Solution

The fourth proportional to 1,106.74, 1,660.09 and 337.24 is: 505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106.74 : 1,660.09 = 337.24 : x
  2. Step 2: Convert to fraction form
    1,106.74/1,660.09 = 337.24/x
  3. Step 3: Cross multiply
    1,106.74x = 1,660.09 × 337.24
  4. Step 4: Simplify right side
    1,106.74x = 559,848.75
  5. Step 5: Solve for x
    x = 559,848.75/1,106.74
  6. Step 6: Final answer
    x = 505.85

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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.