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Finding the Fourth Proportional to 1,067.48, 1,593.98 and 913.17

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Solution

The fourth proportional to 1,067.48, 1,593.98 and 913.17 is: 1,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.48 : 1,593.98 = 913.17 : x
  2. Step 2: Convert to fraction form
    1,067.48/1,593.98 = 913.17/x
  3. Step 3: Cross multiply
    1,067.48x = 1,593.98 × 913.17
  4. Step 4: Simplify right side
    1,067.48x = 1,455,579.55
  5. Step 5: Solve for x
    x = 1,455,579.55/1,067.48
  6. Step 6: Final answer
    x = 1,363.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.