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Finding the Fourth Proportional to 1,132.03, 1,563.20 and 713.13

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Solution

The fourth proportional to 1,132.03, 1,563.20 and 713.13 is: 984.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.03 : 1,563.20 = 713.13 : x
  2. Step 2: Convert to fraction form
    1,132.03/1,563.20 = 713.13/x
  3. Step 3: Cross multiply
    1,132.03x = 1,563.20 × 713.13
  4. Step 4: Simplify right side
    1,132.03x = 1,114,764.82
  5. Step 5: Solve for x
    x = 1,114,764.82/1,132.03
  6. Step 6: Final answer
    x = 984.75

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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.