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Finding the Fourth Proportional to 2,292.04, 3,438.42 and 752.68

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Solution

The fourth proportional to 2,292.04, 3,438.42 and 752.68 is: 1,129.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.04 : 3,438.42 = 752.68 : x
  2. Step 2: Convert to fraction form
    2,292.04/3,438.42 = 752.68/x
  3. Step 3: Cross multiply
    2,292.04x = 3,438.42 × 752.68
  4. Step 4: Simplify right side
    2,292.04x = 2,588,029.97
  5. Step 5: Solve for x
    x = 2,588,029.97/2,292.04
  6. Step 6: Final answer
    x = 1,129.14

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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.