Home / 1,182,781.38-1,632,237.01-638,917.05

Finding the Fourth Proportional to 1,182,781.38, 1,632,237.01 and 638,917.05

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Solution

The fourth proportional to 1,182,781.38, 1,632,237.01 and 638,917.05 is: 881,704.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,781.38 : 1,632,237.01 = 638,917.05 : x
  2. Step 2: Convert to fraction form
    1,182,781.38/1,632,237.01 = 638,917.05/x
  3. Step 3: Cross multiply
    1,182,781.38x = 1,632,237.01 × 638,917.05
  4. Step 4: Simplify right side
    1,182,781.38x = 1,042,864,055,330.02
  5. Step 5: Solve for x
    x = 1,042,864,055,330.02/1,182,781.38
  6. Step 6: Final answer
    x = 881,704.83

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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.