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Finding the Fourth Proportional to 3,398,681.63, 5,097,972.52 and 839,896.51

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Solution

The fourth proportional to 3,398,681.63, 5,097,972.52 and 839,896.51 is: 1,259,832.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398,681.63 : 5,097,972.52 = 839,896.51 : x
  2. Step 2: Convert to fraction form
    3,398,681.63/5,097,972.52 = 839,896.51/x
  3. Step 3: Cross multiply
    3,398,681.63x = 5,097,972.52 × 839,896.51
  4. Step 4: Simplify right side
    3,398,681.63x = 4,281,769,327,623.91
  5. Step 5: Solve for x
    x = 4,281,769,327,623.91/3,398,681.63
  6. Step 6: Final answer
    x = 1,259,832.43

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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.