Home / 1,181,101.65-1,629,919.85-644,557.65

Finding the Fourth Proportional to 1,181,101.65, 1,629,919.85 and 644,557.65

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Solution

The fourth proportional to 1,181,101.65, 1,629,919.85 and 644,557.65 is: 889,489.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,101.65 : 1,629,919.85 = 644,557.65 : x
  2. Step 2: Convert to fraction form
    1,181,101.65/1,629,919.85 = 644,557.65/x
  3. Step 3: Cross multiply
    1,181,101.65x = 1,629,919.85 × 644,557.65
  4. Step 4: Simplify right side
    1,181,101.65x = 1,050,577,304,981.56
  5. Step 5: Solve for x
    x = 1,050,577,304,981.56/1,181,101.65
  6. Step 6: Final answer
    x = 889,489.32

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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.