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Finding the Fourth Proportional to 1,174.86, 1,762.92 and 901.44

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Solution

The fourth proportional to 1,174.86, 1,762.92 and 901.44 is: 1,352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.86 : 1,762.92 = 901.44 : x
  2. Step 2: Convert to fraction form
    1,174.86/1,762.92 = 901.44/x
  3. Step 3: Cross multiply
    1,174.86x = 1,762.92 × 901.44
  4. Step 4: Simplify right side
    1,174.86x = 1,589,166.60
  5. Step 5: Solve for x
    x = 1,589,166.60/1,174.86
  6. Step 6: Final answer
    x = 1,352.64

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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.