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Finding the Fourth Proportional to 1,167.68, 1,610.68 and 695.25

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Solution

The fourth proportional to 1,167.68, 1,610.68 and 695.25 is: 959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.68 : 1,610.68 = 695.25 : x
  2. Step 2: Convert to fraction form
    1,167.68/1,610.68 = 695.25/x
  3. Step 3: Cross multiply
    1,167.68x = 1,610.68 × 695.25
  4. Step 4: Simplify right side
    1,167.68x = 1,119,829.57
  5. Step 5: Solve for x
    x = 1,119,829.57/1,167.68
  6. Step 6: Final answer
    x = 959.03

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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.