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Finding the Fourth Proportional to 1,162.32, 1,744.20 and 469.16

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Solution

The fourth proportional to 1,162.32, 1,744.20 and 469.16 is: 704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.32 : 1,744.20 = 469.16 : x
  2. Step 2: Convert to fraction form
    1,162.32/1,744.20 = 469.16/x
  3. Step 3: Cross multiply
    1,162.32x = 1,744.20 × 469.16
  4. Step 4: Simplify right side
    1,162.32x = 818,308.87
  5. Step 5: Solve for x
    x = 818,308.87/1,162.32
  6. Step 6: Final answer
    x = 704.03

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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.