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Finding the Fourth Proportional to 489,023.70, 733,535.55 and 447,033.30

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Solution

The fourth proportional to 489,023.70, 733,535.55 and 447,033.30 is: 670,549.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,023.70 : 733,535.55 = 447,033.30 : x
  2. Step 2: Convert to fraction form
    489,023.70/733,535.55 = 447,033.30/x
  3. Step 3: Cross multiply
    489,023.70x = 733,535.55 × 447,033.30
  4. Step 4: Simplify right side
    489,023.70x = 327,914,817,583.82
  5. Step 5: Solve for x
    x = 327,914,817,583.82/489,023.70
  6. Step 6: Final answer
    x = 670,549.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.