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Finding the Fourth Proportional to 1,178.43, 1,768.16 and 562.14

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Solution

The fourth proportional to 1,178.43, 1,768.16 and 562.14 is: 843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.43 : 1,768.16 = 562.14 : x
  2. Step 2: Convert to fraction form
    1,178.43/1,768.16 = 562.14/x
  3. Step 3: Cross multiply
    1,178.43x = 1,768.16 × 562.14
  4. Step 4: Simplify right side
    1,178.43x = 993,950.65
  5. Step 5: Solve for x
    x = 993,950.65/1,178.43
  6. Step 6: Final answer
    x = 843.45

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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.