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Finding the Fourth Proportional to 3,761,810.31, 5,642,928.71 and 1,203,249.93

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Solution

The fourth proportional to 3,761,810.31, 5,642,928.71 and 1,203,249.93 is: 1,804,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761,810.31 : 5,642,928.71 = 1,203,249.93 : x
  2. Step 2: Convert to fraction form
    3,761,810.31/5,642,928.71 = 1,203,249.93/x
  3. Step 3: Cross multiply
    3,761,810.31x = 5,642,928.71 × 1,203,249.93
  4. Step 4: Simplify right side
    3,761,810.31x = 6,789,853,569,286.24
  5. Step 5: Solve for x
    x = 6,789,853,569,286.24/3,761,810.31
  6. Step 6: Final answer
    x = 1,804,943.10

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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.