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Finding the Fourth Proportional to 2,331.79, 3,497.04 and 688.16

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Solution

The fourth proportional to 2,331.79, 3,497.04 and 688.16 is: 1,032.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.79 : 3,497.04 = 688.16 : x
  2. Step 2: Convert to fraction form
    2,331.79/3,497.04 = 688.16/x
  3. Step 3: Cross multiply
    2,331.79x = 3,497.04 × 688.16
  4. Step 4: Simplify right side
    2,331.79x = 2,406,531.79
  5. Step 5: Solve for x
    x = 2,406,531.79/2,331.79
  6. Step 6: Final answer
    x = 1,032.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.