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Finding the Fourth Proportional to 1,061.34, 1,589.58 and 695.22

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Solution

The fourth proportional to 1,061.34, 1,589.58 and 695.22 is: 1,041.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.34 : 1,589.58 = 695.22 : x
  2. Step 2: Convert to fraction form
    1,061.34/1,589.58 = 695.22/x
  3. Step 3: Cross multiply
    1,061.34x = 1,589.58 × 695.22
  4. Step 4: Simplify right side
    1,061.34x = 1,105,107.81
  5. Step 5: Solve for x
    x = 1,105,107.81/1,061.34
  6. Step 6: Final answer
    x = 1,041.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.