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Finding the Fourth Proportional to 1,170.30, 1,755.42 and 1,041.48

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Solution

The fourth proportional to 1,170.30, 1,755.42 and 1,041.48 is: 1,562.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.30 : 1,755.42 = 1,041.48 : x
  2. Step 2: Convert to fraction form
    1,170.30/1,755.42 = 1,041.48/x
  3. Step 3: Cross multiply
    1,170.30x = 1,755.42 × 1,041.48
  4. Step 4: Simplify right side
    1,170.30x = 1,828,234.82
  5. Step 5: Solve for x
    x = 1,828,234.82/1,170.30
  6. Step 6: Final answer
    x = 1,562.19

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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.