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Finding the Fourth Proportional to 1,166.48, 1,609.04 and 834.72

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Solution

The fourth proportional to 1,166.48, 1,609.04 and 834.72 is: 1,151.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.48 : 1,609.04 = 834.72 : x
  2. Step 2: Convert to fraction form
    1,166.48/1,609.04 = 834.72/x
  3. Step 3: Cross multiply
    1,166.48x = 1,609.04 × 834.72
  4. Step 4: Simplify right side
    1,166.48x = 1,343,097.87
  5. Step 5: Solve for x
    x = 1,343,097.87/1,166.48
  6. Step 6: Final answer
    x = 1,151.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.