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Finding the Fourth Proportional to 1,167.06, 1,750.35 and 550.42

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Solution

The fourth proportional to 1,167.06, 1,750.35 and 550.42 is: 825.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.06 : 1,750.35 = 550.42 : x
  2. Step 2: Convert to fraction form
    1,167.06/1,750.35 = 550.42/x
  3. Step 3: Cross multiply
    1,167.06x = 1,750.35 × 550.42
  4. Step 4: Simplify right side
    1,167.06x = 963,427.65
  5. Step 5: Solve for x
    x = 963,427.65/1,167.06
  6. Step 6: Final answer
    x = 825.52

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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.