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Finding the Fourth Proportional to 1,175.49, 1,756.16 and 1,040.02

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Solution

The fourth proportional to 1,175.49, 1,756.16 and 1,040.02 is: 1,553.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.49 : 1,756.16 = 1,040.02 : x
  2. Step 2: Convert to fraction form
    1,175.49/1,756.16 = 1,040.02/x
  3. Step 3: Cross multiply
    1,175.49x = 1,756.16 × 1,040.02
  4. Step 4: Simplify right side
    1,175.49x = 1,826,441.52
  5. Step 5: Solve for x
    x = 1,826,441.52/1,175.49
  6. Step 6: Final answer
    x = 1,553.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.