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Finding the Fourth Proportional to 397,996.20, 596,994.30 and 264,443.40

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Solution

The fourth proportional to 397,996.20, 596,994.30 and 264,443.40 is: 396,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,996.20 : 596,994.30 = 264,443.40 : x
  2. Step 2: Convert to fraction form
    397,996.20/596,994.30 = 264,443.40/x
  3. Step 3: Cross multiply
    397,996.20x = 596,994.30 × 264,443.40
  4. Step 4: Simplify right side
    397,996.20x = 157,871,202,472.62
  5. Step 5: Solve for x
    x = 157,871,202,472.62/397,996.20
  6. Step 6: Final answer
    x = 396,665.10

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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.