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Finding the Fourth Proportional to 1,942,958.06, 2,913,189.98 and 806,504.69

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Solution

The fourth proportional to 1,942,958.06, 2,913,189.98 and 806,504.69 is: 1,209,239.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,958.06 : 2,913,189.98 = 806,504.69 : x
  2. Step 2: Convert to fraction form
    1,942,958.06/2,913,189.98 = 806,504.69/x
  3. Step 3: Cross multiply
    1,942,958.06x = 2,913,189.98 × 806,504.69
  4. Step 4: Simplify right side
    1,942,958.06x = 2,349,501,363,132.53
  5. Step 5: Solve for x
    x = 2,349,501,363,132.53/1,942,958.06
  6. Step 6: Final answer
    x = 1,209,239.36

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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.