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Finding the Fourth Proportional to 927.19, 1,279.99 and 534.14

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Solution

The fourth proportional to 927.19, 1,279.99 and 534.14 is: 737.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.19 : 1,279.99 = 534.14 : x
  2. Step 2: Convert to fraction form
    927.19/1,279.99 = 534.14/x
  3. Step 3: Cross multiply
    927.19x = 1,279.99 × 534.14
  4. Step 4: Simplify right side
    927.19x = 683,692.52
  5. Step 5: Solve for x
    x = 683,692.52/927.19
  6. Step 6: Final answer
    x = 737.38

Related Problems

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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.