Home / 919,985.30-1,269,362.82-773,367.71

Finding the Fourth Proportional to 919,985.30, 1,269,362.82 and 773,367.71

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Solution

The fourth proportional to 919,985.30, 1,269,362.82 and 773,367.71 is: 1,067,065.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,985.30 : 1,269,362.82 = 773,367.71 : x
  2. Step 2: Convert to fraction form
    919,985.30/1,269,362.82 = 773,367.71/x
  3. Step 3: Cross multiply
    919,985.30x = 1,269,362.82 × 773,367.71
  4. Step 4: Simplify right side
    919,985.30x = 981,684,216,549.62
  5. Step 5: Solve for x
    x = 981,684,216,549.62/919,985.30
  6. Step 6: Final answer
    x = 1,067,065.11

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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.