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Finding the Fourth Proportional to 484,271.91, 668,304.21 and 269,431.97

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Solution

The fourth proportional to 484,271.91, 668,304.21 and 269,431.97 is: 371,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,271.91 : 668,304.21 = 269,431.97 : x
  2. Step 2: Convert to fraction form
    484,271.91/668,304.21 = 269,431.97/x
  3. Step 3: Cross multiply
    484,271.91x = 668,304.21 × 269,431.97
  4. Step 4: Simplify right side
    484,271.91x = 180,062,516,518.07
  5. Step 5: Solve for x
    x = 180,062,516,518.07/484,271.91
  6. Step 6: Final answer
    x = 371,821.10

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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.