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Finding the Fourth Proportional to 2,249.79, 3,374.15 and 710.79

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Solution

The fourth proportional to 2,249.79, 3,374.15 and 710.79 is: 1,066.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,249.79 : 3,374.15 = 710.79 : x
  2. Step 2: Convert to fraction form
    2,249.79/3,374.15 = 710.79/x
  3. Step 3: Cross multiply
    2,249.79x = 3,374.15 × 710.79
  4. Step 4: Simplify right side
    2,249.79x = 2,398,308.52
  5. Step 5: Solve for x
    x = 2,398,308.52/2,249.79
  6. Step 6: Final answer
    x = 1,066.01

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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.