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Finding the Fourth Proportional to 7,711,947.44, 10,640,055.44 and 4,448,324.64

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Solution

The fourth proportional to 7,711,947.44, 10,640,055.44 and 4,448,324.64 is: 6,137,285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711,947.44 : 10,640,055.44 = 4,448,324.64 : x
  2. Step 2: Convert to fraction form
    7,711,947.44/10,640,055.44 = 4,448,324.64/x
  3. Step 3: Cross multiply
    7,711,947.44x = 10,640,055.44 × 4,448,324.64
  4. Step 4: Simplify right side
    7,711,947.44x = 47,330,420,784,718.04
  5. Step 5: Solve for x
    x = 47,330,420,784,718.04/7,711,947.44
  6. Step 6: Final answer
    x = 6,137,285.19

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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.