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Finding the Fourth Proportional to 3,951,902.64, 5,928,356.16 and 1,255,265.76

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Solution

The fourth proportional to 3,951,902.64, 5,928,356.16 and 1,255,265.76 is: 1,883,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951,902.64 : 5,928,356.16 = 1,255,265.76 : x
  2. Step 2: Convert to fraction form
    3,951,902.64/5,928,356.16 = 1,255,265.76/x
  3. Step 3: Cross multiply
    3,951,902.64x = 5,928,356.16 × 1,255,265.76
  4. Step 4: Simplify right side
    3,951,902.64x = 7,441,662,500,733.08
  5. Step 5: Solve for x
    x = 7,441,662,500,733.08/3,951,902.64
  6. Step 6: Final answer
    x = 1,883,058.16

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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.