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Finding the Fourth Proportional to 484,726.62, 668,921.31 and 269,861.16

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Solution

The fourth proportional to 484,726.62, 668,921.31 and 269,861.16 is: 372,407.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,726.62 : 668,921.31 = 269,861.16 : x
  2. Step 2: Convert to fraction form
    484,726.62/668,921.31 = 269,861.16/x
  3. Step 3: Cross multiply
    484,726.62x = 668,921.31 × 269,861.16
  4. Step 4: Simplify right side
    484,726.62x = 180,515,880,665.32
  5. Step 5: Solve for x
    x = 180,515,880,665.32/484,726.62
  6. Step 6: Final answer
    x = 372,407.61

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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.