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Finding the Fourth Proportional to 5,057,203.52, 6,978,367.68 and 2,992,282.40

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Solution

The fourth proportional to 5,057,203.52, 6,978,367.68 and 2,992,282.40 is: 4,129,010.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057,203.52 : 6,978,367.68 = 2,992,282.40 : x
  2. Step 2: Convert to fraction form
    5,057,203.52/6,978,367.68 = 2,992,282.40/x
  3. Step 3: Cross multiply
    5,057,203.52x = 6,978,367.68 × 2,992,282.40
  4. Step 4: Simplify right side
    5,057,203.52x = 20,881,246,789,592.83
  5. Step 5: Solve for x
    x = 20,881,246,789,592.83/5,057,203.52
  6. Step 6: Final answer
    x = 4,129,010.57

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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.