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Finding the Fourth Proportional to 1,177.67, 1,766.74 and 562.07

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Solution

The fourth proportional to 1,177.67, 1,766.74 and 562.07 is: 843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.67 : 1,766.74 = 562.07 : x
  2. Step 2: Convert to fraction form
    1,177.67/1,766.74 = 562.07/x
  3. Step 3: Cross multiply
    1,177.67x = 1,766.74 × 562.07
  4. Step 4: Simplify right side
    1,177.67x = 993,031.55
  5. Step 5: Solve for x
    x = 993,031.55/1,177.67
  6. Step 6: Final answer
    x = 843.22

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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.