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Finding the Fourth Proportional to 1,176.49, 1,765.14 and 446.14

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Solution

The fourth proportional to 1,176.49, 1,765.14 and 446.14 is: 669.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.49 : 1,765.14 = 446.14 : x
  2. Step 2: Convert to fraction form
    1,176.49/1,765.14 = 446.14/x
  3. Step 3: Cross multiply
    1,176.49x = 1,765.14 × 446.14
  4. Step 4: Simplify right side
    1,176.49x = 787,499.56
  5. Step 5: Solve for x
    x = 787,499.56/1,176.49
  6. Step 6: Final answer
    x = 669.36

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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.