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Finding the Fourth Proportional to 635,789.12, 953,684.12 and 162,474.92

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Solution

The fourth proportional to 635,789.12, 953,684.12 and 162,474.92 is: 243,712.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,789.12 : 953,684.12 = 162,474.92 : x
  2. Step 2: Convert to fraction form
    635,789.12/953,684.12 = 162,474.92/x
  3. Step 3: Cross multiply
    635,789.12x = 953,684.12 × 162,474.92
  4. Step 4: Simplify right side
    635,789.12x = 154,949,751,102.27
  5. Step 5: Solve for x
    x = 154,949,751,102.27/635,789.12
  6. Step 6: Final answer
    x = 243,712.49

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Half scale
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Double scale
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Similar ratio
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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.