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Finding the Fourth Proportional to 281,817,616.40, 422,726,424.60 and 281,817,616.40

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Solution

The fourth proportional to 281,817,616.40, 422,726,424.60 and 281,817,616.40 is: 422,726,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,817,616.40 : 422,726,424.60 = 281,817,616.40 : x
  2. Step 2: Convert to fraction form
    281,817,616.40/422,726,424.60 = 281,817,616.40/x
  3. Step 3: Cross multiply
    281,817,616.40x = 422,726,424.60 × 281,817,616.40
  4. Step 4: Simplify right side
    281,817,616.40x = 119,131,753,370,066,320
  5. Step 5: Solve for x
    x = 119,131,753,370,066,320/281,817,616.40
  6. Step 6: Final answer
    x = 422,726,424.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.