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Finding the Fourth Proportional to 2,918,798.96, 4,375,221.96 and 1,653,954.80

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Solution

The fourth proportional to 2,918,798.96, 4,375,221.96 and 1,653,954.80 is: 2,479,245.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,798.96 : 4,375,221.96 = 1,653,954.80 : x
  2. Step 2: Convert to fraction form
    2,918,798.96/4,375,221.96 = 1,653,954.80/x
  3. Step 3: Cross multiply
    2,918,798.96x = 4,375,221.96 × 1,653,954.80
  4. Step 4: Simplify right side
    2,918,798.96x = 7,236,419,361,807.41
  5. Step 5: Solve for x
    x = 7,236,419,361,807.41/2,918,798.96
  6. Step 6: Final answer
    x = 2,479,245.56

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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.