Home / 1,192,137.30-1,645,758.72-919,593.36

Finding the Fourth Proportional to 1,192,137.30, 1,645,758.72 and 919,593.36

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Solution

The fourth proportional to 1,192,137.30, 1,645,758.72 and 919,593.36 is: 1,269,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,137.30 : 1,645,758.72 = 919,593.36 : x
  2. Step 2: Convert to fraction form
    1,192,137.30/1,645,758.72 = 919,593.36/x
  3. Step 3: Cross multiply
    1,192,137.30x = 1,645,758.72 × 919,593.36
  4. Step 4: Simplify right side
    1,192,137.30x = 1,513,428,791,074.10
  5. Step 5: Solve for x
    x = 1,513,428,791,074.10/1,192,137.30
  6. Step 6: Final answer
    x = 1,269,508.80

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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.