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Finding the Fourth Proportional to 438,601.81, 605,272.32 and 237,397.81

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Solution

The fourth proportional to 438,601.81, 605,272.32 and 237,397.81 is: 327,609.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,601.81 : 605,272.32 = 237,397.81 : x
  2. Step 2: Convert to fraction form
    438,601.81/605,272.32 = 237,397.81/x
  3. Step 3: Cross multiply
    438,601.81x = 605,272.32 × 237,397.81
  4. Step 4: Simplify right side
    438,601.81x = 143,690,323,221.62
  5. Step 5: Solve for x
    x = 143,690,323,221.62/438,601.81
  6. Step 6: Final answer
    x = 327,609.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.