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Finding the Fourth Proportional to 484,272.66, 668,305.26 and 269,432.72

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Solution

The fourth proportional to 484,272.66, 668,305.26 and 269,432.72 is: 371,822.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,272.66 : 668,305.26 = 269,432.72 : x
  2. Step 2: Convert to fraction form
    484,272.66/668,305.26 = 269,432.72/x
  3. Step 3: Cross multiply
    484,272.66x = 668,305.26 × 269,432.72
  4. Step 4: Simplify right side
    484,272.66x = 180,063,300,650.58
  5. Step 5: Solve for x
    x = 180,063,300,650.58/484,272.66
  6. Step 6: Final answer
    x = 371,822.15

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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.