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Finding the Fourth Proportional to 484,335.31, 668,414.67 and 269,475.82

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Solution

The fourth proportional to 484,335.31, 668,414.67 and 269,475.82 is: 371,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,335.31 : 668,414.67 = 269,475.82 : x
  2. Step 2: Convert to fraction form
    484,335.31/668,414.67 = 269,475.82/x
  3. Step 3: Cross multiply
    484,335.31x = 668,414.67 × 269,475.82
  4. Step 4: Simplify right side
    484,335.31x = 180,121,591,298.28
  5. Step 5: Solve for x
    x = 180,121,591,298.28/484,335.31
  6. Step 6: Final answer
    x = 371,894.40

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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.