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Finding the Fourth Proportional to 438,674.10, 605,372.19 and 237,470.10

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Solution

The fourth proportional to 438,674.10, 605,372.19 and 237,470.10 is: 327,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,674.10 : 605,372.19 = 237,470.10 : x
  2. Step 2: Convert to fraction form
    438,674.10/605,372.19 = 237,470.10/x
  3. Step 3: Cross multiply
    438,674.10x = 605,372.19 × 237,470.10
  4. Step 4: Simplify right side
    438,674.10x = 143,757,794,496.52
  5. Step 5: Solve for x
    x = 143,757,794,496.52/438,674.10
  6. Step 6: Final answer
    x = 327,709.78

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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.