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Finding the Fourth Proportional to 1,691.59, 2,331.91 and 1,094.04

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Solution

The fourth proportional to 1,691.59, 2,331.91 and 1,094.04 is: 1,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.59 : 2,331.91 = 1,094.04 : x
  2. Step 2: Convert to fraction form
    1,691.59/2,331.91 = 1,094.04/x
  3. Step 3: Cross multiply
    1,691.59x = 2,331.91 × 1,094.04
  4. Step 4: Simplify right side
    1,691.59x = 2,551,207.26
  5. Step 5: Solve for x
    x = 2,551,207.26/1,691.59
  6. Step 6: Final answer
    x = 1,508.17

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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.