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Finding the Fourth Proportional to 1,101.84, 1,653.42 and 452.46

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Solution

The fourth proportional to 1,101.84, 1,653.42 and 452.46 is: 678.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101.84 : 1,653.42 = 452.46 : x
  2. Step 2: Convert to fraction form
    1,101.84/1,653.42 = 452.46/x
  3. Step 3: Cross multiply
    1,101.84x = 1,653.42 × 452.46
  4. Step 4: Simplify right side
    1,101.84x = 748,106.41
  5. Step 5: Solve for x
    x = 748,106.41/1,101.84
  6. Step 6: Final answer
    x = 678.96

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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.