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Finding the Fourth Proportional to 1,176.53, 1,764.11 and 1,043.28

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Solution

The fourth proportional to 1,176.53, 1,764.11 and 1,043.28 is: 1,564.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.53 : 1,764.11 = 1,043.28 : x
  2. Step 2: Convert to fraction form
    1,176.53/1,764.11 = 1,043.28/x
  3. Step 3: Cross multiply
    1,176.53x = 1,764.11 × 1,043.28
  4. Step 4: Simplify right side
    1,176.53x = 1,840,463.29
  5. Step 5: Solve for x
    x = 1,840,463.29/1,176.53
  6. Step 6: Final answer
    x = 1,564.32

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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.