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Finding the Fourth Proportional to 6,508,684.20, 8,982,978.39 and 4,154,898.72

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Solution

The fourth proportional to 6,508,684.20, 8,982,978.39 and 4,154,898.72 is: 5,734,394.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,508,684.20 : 8,982,978.39 = 4,154,898.72 : x
  2. Step 2: Convert to fraction form
    6,508,684.20/8,982,978.39 = 4,154,898.72/x
  3. Step 3: Cross multiply
    6,508,684.20x = 8,982,978.39 × 4,154,898.72
  4. Step 4: Simplify right side
    6,508,684.20x = 37,323,365,414,398.66
  5. Step 5: Solve for x
    x = 37,323,365,414,398.66/6,508,684.20
  6. Step 6: Final answer
    x = 5,734,394.89

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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.