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Finding the Fourth Proportional to 1,184.22, 1,776.18 and 491.52

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Solution

The fourth proportional to 1,184.22, 1,776.18 and 491.52 is: 737.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.22 : 1,776.18 = 491.52 : x
  2. Step 2: Convert to fraction form
    1,184.22/1,776.18 = 491.52/x
  3. Step 3: Cross multiply
    1,184.22x = 1,776.18 × 491.52
  4. Step 4: Simplify right side
    1,184.22x = 873,023.74
  5. Step 5: Solve for x
    x = 873,023.74/1,184.22
  6. Step 6: Final answer
    x = 737.21

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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.