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Finding the Fourth Proportional to 2,398.93, 3,598.44 and 667.55

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Solution

The fourth proportional to 2,398.93, 3,598.44 and 667.55 is: 1,001.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.93 : 3,598.44 = 667.55 : x
  2. Step 2: Convert to fraction form
    2,398.93/3,598.44 = 667.55/x
  3. Step 3: Cross multiply
    2,398.93x = 3,598.44 × 667.55
  4. Step 4: Simplify right side
    2,398.93x = 2,402,138.62
  5. Step 5: Solve for x
    x = 2,402,138.62/2,398.93
  6. Step 6: Final answer
    x = 1,001.34

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1.5x scale

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.