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Finding the Fourth Proportional to 1,101.84, 1,520.54 and 604.53

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Solution

The fourth proportional to 1,101.84, 1,520.54 and 604.53 is: 834.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101.84 : 1,520.54 = 604.53 : x
  2. Step 2: Convert to fraction form
    1,101.84/1,520.54 = 604.53/x
  3. Step 3: Cross multiply
    1,101.84x = 1,520.54 × 604.53
  4. Step 4: Simplify right side
    1,101.84x = 919,211.29
  5. Step 5: Solve for x
    x = 919,211.29/1,101.84
  6. Step 6: Final answer
    x = 834.25

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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.