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Finding the Fourth Proportional to 484,416.74, 668,434.92 and 269,541.56

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Solution

The fourth proportional to 484,416.74, 668,434.92 and 269,541.56 is: 371,933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,416.74 : 668,434.92 = 269,541.56 : x
  2. Step 2: Convert to fraction form
    484,416.74/668,434.92 = 269,541.56/x
  3. Step 3: Cross multiply
    484,416.74x = 668,434.92 × 269,541.56
  4. Step 4: Simplify right side
    484,416.74x = 180,170,987,753.10
  5. Step 5: Solve for x
    x = 180,170,987,753.10/484,416.74
  6. Step 6: Final answer
    x = 371,933.86

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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.