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Finding the Fourth Proportional to 1,132.53, 1,563.03 and 635.19

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Solution

The fourth proportional to 1,132.53, 1,563.03 and 635.19 is: 876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.53 : 1,563.03 = 635.19 : x
  2. Step 2: Convert to fraction form
    1,132.53/1,563.03 = 635.19/x
  3. Step 3: Cross multiply
    1,132.53x = 1,563.03 × 635.19
  4. Step 4: Simplify right side
    1,132.53x = 992,821.03
  5. Step 5: Solve for x
    x = 992,821.03/1,132.53
  6. Step 6: Final answer
    x = 876.64

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Half scale
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Double scale
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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.