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Finding the Fourth Proportional to 419,351.52, 578,661.12 and 244,927.20

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Solution

The fourth proportional to 419,351.52, 578,661.12 and 244,927.20 is: 337,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,351.52 : 578,661.12 = 244,927.20 : x
  2. Step 2: Convert to fraction form
    419,351.52/578,661.12 = 244,927.20/x
  3. Step 3: Cross multiply
    419,351.52x = 578,661.12 × 244,927.20
  4. Step 4: Simplify right side
    419,351.52x = 141,729,847,870.46
  5. Step 5: Solve for x
    x = 141,729,847,870.46/419,351.52
  6. Step 6: Final answer
    x = 337,973.85

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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.