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Finding the Fourth Proportional to 925.53, 1,388.04 and 462.96

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Solution

The fourth proportional to 925.53, 1,388.04 and 462.96 is: 694.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.53 : 1,388.04 = 462.96 : x
  2. Step 2: Convert to fraction form
    925.53/1,388.04 = 462.96/x
  3. Step 3: Cross multiply
    925.53x = 1,388.04 × 462.96
  4. Step 4: Simplify right side
    925.53x = 642,607.00
  5. Step 5: Solve for x
    x = 642,607.00/925.53
  6. Step 6: Final answer
    x = 694.31

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.