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Finding the Fourth Proportional to 1,061.84, 1,591.14 and 541.06

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Solution

The fourth proportional to 1,061.84, 1,591.14 and 541.06 is: 810.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.84 : 1,591.14 = 541.06 : x
  2. Step 2: Convert to fraction form
    1,061.84/1,591.14 = 541.06/x
  3. Step 3: Cross multiply
    1,061.84x = 1,591.14 × 541.06
  4. Step 4: Simplify right side
    1,061.84x = 860,902.21
  5. Step 5: Solve for x
    x = 860,902.21/1,061.84
  6. Step 6: Final answer
    x = 810.76

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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.