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Finding the Fourth Proportional to 4,878,772.97, 7,313,287.90 and 3,260,904.48

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Solution

The fourth proportional to 4,878,772.97, 7,313,287.90 and 3,260,904.48 is: 4,888,100.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878,772.97 : 7,313,287.90 = 3,260,904.48 : x
  2. Step 2: Convert to fraction form
    4,878,772.97/7,313,287.90 = 3,260,904.48/x
  3. Step 3: Cross multiply
    4,878,772.97x = 7,313,287.90 × 3,260,904.48
  4. Step 4: Simplify right side
    4,878,772.97x = 23,847,933,276,639.79
  5. Step 5: Solve for x
    x = 23,847,933,276,639.79/4,878,772.97
  6. Step 6: Final answer
    x = 4,888,100.64

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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.