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Finding the Fourth Proportional to 1,131.33, 1,697.70 and 482.01

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Solution

The fourth proportional to 1,131.33, 1,697.70 and 482.01 is: 723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131.33 : 1,697.70 = 482.01 : x
  2. Step 2: Convert to fraction form
    1,131.33/1,697.70 = 482.01/x
  3. Step 3: Cross multiply
    1,131.33x = 1,697.70 × 482.01
  4. Step 4: Simplify right side
    1,131.33x = 818,308.38
  5. Step 5: Solve for x
    x = 818,308.38/1,131.33
  6. Step 6: Final answer
    x = 723.32

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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.