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Finding the Fourth Proportional to 1,174.88, 1,762.34 and 444.80

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Solution

The fourth proportional to 1,174.88, 1,762.34 and 444.80 is: 667.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.88 : 1,762.34 = 444.80 : x
  2. Step 2: Convert to fraction form
    1,174.88/1,762.34 = 444.80/x
  3. Step 3: Cross multiply
    1,174.88x = 1,762.34 × 444.80
  4. Step 4: Simplify right side
    1,174.88x = 783,888.83
  5. Step 5: Solve for x
    x = 783,888.83/1,174.88
  6. Step 6: Final answer
    x = 667.21

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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.