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Finding the Fourth Proportional to 1,944,856.98, 2,917,743.69 and 665,478.38

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Solution

The fourth proportional to 1,944,856.98, 2,917,743.69 and 665,478.38 is: 998,374.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944,856.98 : 2,917,743.69 = 665,478.38 : x
  2. Step 2: Convert to fraction form
    1,944,856.98/2,917,743.69 = 665,478.38/x
  3. Step 3: Cross multiply
    1,944,856.98x = 2,917,743.69 × 665,478.38
  4. Step 4: Simplify right side
    1,944,856.98x = 1,941,695,353,866.33
  5. Step 5: Solve for x
    x = 1,941,695,353,866.33/1,944,856.98
  6. Step 6: Final answer
    x = 998,374.37

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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.