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Finding the Fourth Proportional to 1,134.92, 1,566.96 and 736.76

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Solution

The fourth proportional to 1,134.92, 1,566.96 and 736.76 is: 1,017.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.92 : 1,566.96 = 736.76 : x
  2. Step 2: Convert to fraction form
    1,134.92/1,566.96 = 736.76/x
  3. Step 3: Cross multiply
    1,134.92x = 1,566.96 × 736.76
  4. Step 4: Simplify right side
    1,134.92x = 1,154,473.45
  5. Step 5: Solve for x
    x = 1,154,473.45/1,134.92
  6. Step 6: Final answer
    x = 1,017.23

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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.