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Finding the Fourth Proportional to 1,102.46, 1,653.84 and 372.24

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Solution

The fourth proportional to 1,102.46, 1,653.84 and 372.24 is: 558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.46 : 1,653.84 = 372.24 : x
  2. Step 2: Convert to fraction form
    1,102.46/1,653.84 = 372.24/x
  3. Step 3: Cross multiply
    1,102.46x = 1,653.84 × 372.24
  4. Step 4: Simplify right side
    1,102.46x = 615,623.54
  5. Step 5: Solve for x
    x = 615,623.54/1,102.46
  6. Step 6: Final answer
    x = 558.41

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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.