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Finding the Fourth Proportional to 1,742.36, 2,404.61 and 996.17

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Solution

The fourth proportional to 1,742.36, 2,404.61 and 996.17 is: 1,374.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.36 : 2,404.61 = 996.17 : x
  2. Step 2: Convert to fraction form
    1,742.36/2,404.61 = 996.17/x
  3. Step 3: Cross multiply
    1,742.36x = 2,404.61 × 996.17
  4. Step 4: Simplify right side
    1,742.36x = 2,395,387.08
  5. Step 5: Solve for x
    x = 2,395,387.08/1,742.36
  6. Step 6: Final answer
    x = 1,374.80

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1.5x scale

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.