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Finding the Fourth Proportional to 408,396.74, 563,497.41 and 244,978.63

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Solution

The fourth proportional to 408,396.74, 563,497.41 and 244,978.63 is: 338,016.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,396.74 : 563,497.41 = 244,978.63 : x
  2. Step 2: Convert to fraction form
    408,396.74/563,497.41 = 244,978.63/x
  3. Step 3: Cross multiply
    408,396.74x = 563,497.41 × 244,978.63
  4. Step 4: Simplify right side
    408,396.74x = 138,044,821,642.27
  5. Step 5: Solve for x
    x = 138,044,821,642.27/408,396.74
  6. Step 6: Final answer
    x = 338,016.47

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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.