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Finding the Fourth Proportional to 3,504,943.80, 4,914,007.20 and 3,504,943.80

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Solution

The fourth proportional to 3,504,943.80, 4,914,007.20 and 3,504,943.80 is: 4,914,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504,943.80 : 4,914,007.20 = 3,504,943.80 : x
  2. Step 2: Convert to fraction form
    3,504,943.80/4,914,007.20 = 3,504,943.80/x
  3. Step 3: Cross multiply
    3,504,943.80x = 4,914,007.20 × 3,504,943.80
  4. Step 4: Simplify right side
    3,504,943.80x = 17,223,319,068,795.36
  5. Step 5: Solve for x
    x = 17,223,319,068,795.36/3,504,943.80
  6. Step 6: Final answer
    x = 4,914,007.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.