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Finding the Fourth Proportional to 484,443.21, 668,521.74 and 303,255.06

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Solution

The fourth proportional to 484,443.21, 668,521.74 and 303,255.06 is: 418,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,443.21 : 668,521.74 = 303,255.06 : x
  2. Step 2: Convert to fraction form
    484,443.21/668,521.74 = 303,255.06/x
  3. Step 3: Cross multiply
    484,443.21x = 668,521.74 × 303,255.06
  4. Step 4: Simplify right side
    484,443.21x = 202,732,600,375.00
  5. Step 5: Solve for x
    x = 202,732,600,375.00/484,443.21
  6. Step 6: Final answer
    x = 418,485.79

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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.