Home / 1,192,141.28-1,645,764.24-919,597.32

Finding the Fourth Proportional to 1,192,141.28, 1,645,764.24 and 919,597.32

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Solution

The fourth proportional to 1,192,141.28, 1,645,764.24 and 919,597.32 is: 1,269,514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,141.28 : 1,645,764.24 = 919,597.32 : x
  2. Step 2: Convert to fraction form
    1,192,141.28/1,645,764.24 = 919,597.32/x
  3. Step 3: Cross multiply
    1,192,141.28x = 1,645,764.24 × 919,597.32
  4. Step 4: Simplify right side
    1,192,141.28x = 1,513,440,384,455.84
  5. Step 5: Solve for x
    x = 1,513,440,384,455.84/1,192,141.28
  6. Step 6: Final answer
    x = 1,269,514.28

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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.