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Finding the Fourth Proportional to 663,331.40, 994,997.10 and 164,695.40

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Solution

The fourth proportional to 663,331.40, 994,997.10 and 164,695.40 is: 247,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,331.40 : 994,997.10 = 164,695.40 : x
  2. Step 2: Convert to fraction form
    663,331.40/994,997.10 = 164,695.40/x
  3. Step 3: Cross multiply
    663,331.40x = 994,997.10 × 164,695.40
  4. Step 4: Simplify right side
    663,331.40x = 163,871,445,383.34
  5. Step 5: Solve for x
    x = 163,871,445,383.34/663,331.40
  6. Step 6: Final answer
    x = 247,043.10

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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.