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Finding the Fourth Proportional to 438,781.96, 605,520.66 and 237,577.96

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Solution

The fourth proportional to 438,781.96, 605,520.66 and 237,577.96 is: 327,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,781.96 : 605,520.66 = 237,577.96 : x
  2. Step 2: Convert to fraction form
    438,781.96/605,520.66 = 237,577.96/x
  3. Step 3: Cross multiply
    438,781.96x = 605,520.66 × 237,577.96
  4. Step 4: Simplify right side
    438,781.96x = 143,858,363,140.65
  5. Step 5: Solve for x
    x = 143,858,363,140.65/438,781.96
  6. Step 6: Final answer
    x = 327,858.43

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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.