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Finding the Fourth Proportional to 1,149.65, 1,724.46 and 564.62

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Solution

The fourth proportional to 1,149.65, 1,724.46 and 564.62 is: 846.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.65 : 1,724.46 = 564.62 : x
  2. Step 2: Convert to fraction form
    1,149.65/1,724.46 = 564.62/x
  3. Step 3: Cross multiply
    1,149.65x = 1,724.46 × 564.62
  4. Step 4: Simplify right side
    1,149.65x = 973,655.98
  5. Step 5: Solve for x
    x = 973,655.98/1,149.65
  6. Step 6: Final answer
    x = 846.92

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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.