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Finding the Fourth Proportional to 2,865,957.56, 3,952,782.68 and 1,777,618.88

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Solution

The fourth proportional to 2,865,957.56, 3,952,782.68 and 1,777,618.88 is: 2,451,725.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865,957.56 : 3,952,782.68 = 1,777,618.88 : x
  2. Step 2: Convert to fraction form
    2,865,957.56/3,952,782.68 = 1,777,618.88/x
  3. Step 3: Cross multiply
    2,865,957.56x = 3,952,782.68 × 1,777,618.88
  4. Step 4: Simplify right side
    2,865,957.56x = 7,026,541,120,505.00
  5. Step 5: Solve for x
    x = 7,026,541,120,505.00/2,865,957.56
  6. Step 6: Final answer
    x = 2,451,725.46

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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.