Home / 1,640,151.72-2,263,410.34-914,999.43

Finding the Fourth Proportional to 1,640,151.72, 2,263,410.34 and 914,999.43

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Solution

The fourth proportional to 1,640,151.72, 2,263,410.34 and 914,999.43 is: 1,262,699.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,151.72 : 2,263,410.34 = 914,999.43 : x
  2. Step 2: Convert to fraction form
    1,640,151.72/2,263,410.34 = 914,999.43/x
  3. Step 3: Cross multiply
    1,640,151.72x = 2,263,410.34 × 914,999.43
  4. Step 4: Simplify right side
    1,640,151.72x = 2,071,019,181,355.20
  5. Step 5: Solve for x
    x = 2,071,019,181,355.20/1,640,151.72
  6. Step 6: Final answer
    x = 1,262,699.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.