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Finding the Fourth Proportional to 1,898,977.61, 2,848,593.16 and 667,837.79

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Solution

The fourth proportional to 1,898,977.61, 2,848,593.16 and 667,837.79 is: 1,001,801.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,977.61 : 2,848,593.16 = 667,837.79 : x
  2. Step 2: Convert to fraction form
    1,898,977.61/2,848,593.16 = 667,837.79/x
  3. Step 3: Cross multiply
    1,898,977.61x = 2,848,593.16 × 667,837.79
  4. Step 4: Simplify right side
    1,898,977.61x = 1,902,398,160,583.52
  5. Step 5: Solve for x
    x = 1,902,398,160,583.52/1,898,977.61
  6. Step 6: Final answer
    x = 1,001,801.26

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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.