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Finding the Fourth Proportional to 1,110.48, 1,532.04 and 695.76

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Solution

The fourth proportional to 1,110.48, 1,532.04 and 695.76 is: 959.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.48 : 1,532.04 = 695.76 : x
  2. Step 2: Convert to fraction form
    1,110.48/1,532.04 = 695.76/x
  3. Step 3: Cross multiply
    1,110.48x = 1,532.04 × 695.76
  4. Step 4: Simplify right side
    1,110.48x = 1,065,932.15
  5. Step 5: Solve for x
    x = 1,065,932.15/1,110.48
  6. Step 6: Final answer
    x = 959.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.