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Finding the Fourth Proportional to 396,098.82, 593,999.07 and 143,316.81

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Solution

The fourth proportional to 396,098.82, 593,999.07 and 143,316.81 is: 214,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,098.82 : 593,999.07 = 143,316.81 : x
  2. Step 2: Convert to fraction form
    396,098.82/593,999.07 = 143,316.81/x
  3. Step 3: Cross multiply
    396,098.82x = 593,999.07 × 143,316.81
  4. Step 4: Simplify right side
    396,098.82x = 85,130,053,545.43
  5. Step 5: Solve for x
    x = 85,130,053,545.43/396,098.82
  6. Step 6: Final answer
    x = 214,921.25

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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.