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Finding the Fourth Proportional to 1,061.16, 1,592 and 330.72

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Solution

The fourth proportional to 1,061.16, 1,592 and 330.72 is: 496.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.16 : 1,592 = 330.72 : x
  2. Step 2: Convert to fraction form
    1,061.16/1,592 = 330.72/x
  3. Step 3: Cross multiply
    1,061.16x = 1,592 × 330.72
  4. Step 4: Simplify right side
    1,061.16x = 526,506.24
  5. Step 5: Solve for x
    x = 526,506.24/1,061.16
  6. Step 6: Final answer
    x = 496.16

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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.