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Finding the Fourth Proportional to 6,489,670.44, 8,956,943.28 and 4,169,463.40

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Solution

The fourth proportional to 6,489,670.44, 8,956,943.28 and 4,169,463.40 is: 5,754,629.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489,670.44 : 8,956,943.28 = 4,169,463.40 : x
  2. Step 2: Convert to fraction form
    6,489,670.44/8,956,943.28 = 4,169,463.40/x
  3. Step 3: Cross multiply
    6,489,670.44x = 8,956,943.28 × 4,169,463.40
  4. Step 4: Simplify right side
    6,489,670.44x = 37,345,647,193,032.13
  5. Step 5: Solve for x
    x = 37,345,647,193,032.13/6,489,670.44
  6. Step 6: Final answer
    x = 5,754,629.22

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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.