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Finding the Fourth Proportional to 1,943,940.61, 2,917,212.45 and 806,703.94

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Solution

The fourth proportional to 1,943,940.61, 2,917,212.45 and 806,703.94 is: 1,210,596.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,940.61 : 2,917,212.45 = 806,703.94 : x
  2. Step 2: Convert to fraction form
    1,943,940.61/2,917,212.45 = 806,703.94/x
  3. Step 3: Cross multiply
    1,943,940.61x = 2,917,212.45 × 806,703.94
  4. Step 4: Simplify right side
    1,943,940.61x = 2,353,326,777,232.05
  5. Step 5: Solve for x
    x = 2,353,326,777,232.05/1,943,940.61
  6. Step 6: Final answer
    x = 1,210,596.03

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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.