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Finding the Fourth Proportional to 1,103.42, 1,522.70 and 606.04

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Solution

The fourth proportional to 1,103.42, 1,522.70 and 606.04 is: 836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.42 : 1,522.70 = 606.04 : x
  2. Step 2: Convert to fraction form
    1,103.42/1,522.70 = 606.04/x
  3. Step 3: Cross multiply
    1,103.42x = 1,522.70 × 606.04
  4. Step 4: Simplify right side
    1,103.42x = 922,817.11
  5. Step 5: Solve for x
    x = 922,817.11/1,103.42
  6. Step 6: Final answer
    x = 836.32

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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.