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Finding the Fourth Proportional to 662,967.40, 994,451.10 and 164,331.40

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Solution

The fourth proportional to 662,967.40, 994,451.10 and 164,331.40 is: 246,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,967.40 : 994,451.10 = 164,331.40 : x
  2. Step 2: Convert to fraction form
    662,967.40/994,451.10 = 164,331.40/x
  3. Step 3: Cross multiply
    662,967.40x = 994,451.10 × 164,331.40
  4. Step 4: Simplify right side
    662,967.40x = 163,419,541,494.54
  5. Step 5: Solve for x
    x = 163,419,541,494.54/662,967.40
  6. Step 6: Final answer
    x = 246,497.10

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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.