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Finding the Fourth Proportional to 1,149.17, 1,723.16 and 563.91

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Solution

The fourth proportional to 1,149.17, 1,723.16 and 563.91 is: 845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.17 : 1,723.16 = 563.91 : x
  2. Step 2: Convert to fraction form
    1,149.17/1,723.16 = 563.91/x
  3. Step 3: Cross multiply
    1,149.17x = 1,723.16 × 563.91
  4. Step 4: Simplify right side
    1,149.17x = 971,708.64
  5. Step 5: Solve for x
    x = 971,708.64/1,149.17
  6. Step 6: Final answer
    x = 845.58

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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.