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Finding the Fourth Proportional to 397,291.20, 596,167.20 and 147,998.40

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Solution

The fourth proportional to 397,291.20, 596,167.20 and 147,998.40 is: 222,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,291.20 : 596,167.20 = 147,998.40 : x
  2. Step 2: Convert to fraction form
    397,291.20/596,167.20 = 147,998.40/x
  3. Step 3: Cross multiply
    397,291.20x = 596,167.20 × 147,998.40
  4. Step 4: Simplify right side
    397,291.20x = 88,231,791,732.48
  5. Step 5: Solve for x
    x = 88,231,791,732.48/397,291.20
  6. Step 6: Final answer
    x = 222,083.43

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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.