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Finding the Fourth Proportional to 1,132.67, 1,699.00 and 310.94

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Solution

The fourth proportional to 1,132.67, 1,699.00 and 310.94 is: 466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.67 : 1,699.00 = 310.94 : x
  2. Step 2: Convert to fraction form
    1,132.67/1,699.00 = 310.94/x
  3. Step 3: Cross multiply
    1,132.67x = 1,699.00 × 310.94
  4. Step 4: Simplify right side
    1,132.67x = 528,290.53
  5. Step 5: Solve for x
    x = 528,290.53/1,132.67
  6. Step 6: Final answer
    x = 466.41

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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.