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Finding the Fourth Proportional to 484,618.30, 668,766.09 and 269,758.06

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Solution

The fourth proportional to 484,618.30, 668,766.09 and 269,758.06 is: 372,262.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,618.30 : 668,766.09 = 269,758.06 : x
  2. Step 2: Convert to fraction form
    484,618.30/668,766.09 = 269,758.06/x
  3. Step 3: Cross multiply
    484,618.30x = 668,766.09 × 269,758.06
  4. Step 4: Simplify right side
    484,618.30x = 180,405,043,032.19
  5. Step 5: Solve for x
    x = 180,405,043,032.19/484,618.30
  6. Step 6: Final answer
    x = 372,262.14

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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.