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Finding the Fourth Proportional to 1,245.84, 1,869.17 and 596.63

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Solution

The fourth proportional to 1,245.84, 1,869.17 and 596.63 is: 895.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.84 : 1,869.17 = 596.63 : x
  2. Step 2: Convert to fraction form
    1,245.84/1,869.17 = 596.63/x
  3. Step 3: Cross multiply
    1,245.84x = 1,869.17 × 596.63
  4. Step 4: Simplify right side
    1,245.84x = 1,115,202.90
  5. Step 5: Solve for x
    x = 1,115,202.90/1,245.84
  6. Step 6: Final answer
    x = 895.14

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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.