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Finding the Fourth Proportional to 1,497.53, 2,066.60 and 868.18

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Solution

The fourth proportional to 1,497.53, 2,066.60 and 868.18 is: 1,198.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.53 : 2,066.60 = 868.18 : x
  2. Step 2: Convert to fraction form
    1,497.53/2,066.60 = 868.18/x
  3. Step 3: Cross multiply
    1,497.53x = 2,066.60 × 868.18
  4. Step 4: Simplify right side
    1,497.53x = 1,794,180.79
  5. Step 5: Solve for x
    x = 1,794,180.79/1,497.53
  6. Step 6: Final answer
    x = 1,198.09

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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.