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Finding the Fourth Proportional to 7,078,617.92, 9,769,322.04 and 4,023,291.44

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Solution

The fourth proportional to 7,078,617.92, 9,769,322.04 and 4,023,291.44 is: 5,552,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078,617.92 : 9,769,322.04 = 4,023,291.44 : x
  2. Step 2: Convert to fraction form
    7,078,617.92/9,769,322.04 = 4,023,291.44/x
  3. Step 3: Cross multiply
    7,078,617.92x = 9,769,322.04 × 4,023,291.44
  4. Step 4: Simplify right side
    7,078,617.92x = 39,304,829,738,135.34
  5. Step 5: Solve for x
    x = 39,304,829,738,135.34/7,078,617.92
  6. Step 6: Final answer
    x = 5,552,613.54

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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.