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Finding the Fourth Proportional to 3,761,602.74, 5,641,669.64 and 1,202,131.13

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Solution

The fourth proportional to 3,761,602.74, 5,641,669.64 and 1,202,131.13 is: 1,802,961.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761,602.74 : 5,641,669.64 = 1,202,131.13 : x
  2. Step 2: Convert to fraction form
    3,761,602.74/5,641,669.64 = 1,202,131.13/x
  3. Step 3: Cross multiply
    3,761,602.74x = 5,641,669.64 × 1,202,131.13
  4. Step 4: Simplify right side
    3,761,602.74x = 6,782,026,674,216.87
  5. Step 5: Solve for x
    x = 6,782,026,674,216.87/3,761,602.74
  6. Step 6: Final answer
    x = 1,802,961.97

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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.