Home / 763,839.18-1,054,101.06-419,703

Finding the Fourth Proportional to 763,839.18, 1,054,101.06 and 419,703

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Solution

The fourth proportional to 763,839.18, 1,054,101.06 and 419,703 is: 579,191.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,839.18 : 1,054,101.06 = 419,703 : x
  2. Step 2: Convert to fraction form
    763,839.18/1,054,101.06 = 419,703/x
  3. Step 3: Cross multiply
    763,839.18x = 1,054,101.06 × 419,703
  4. Step 4: Simplify right side
    763,839.18x = 442,409,377,185.18
  5. Step 5: Solve for x
    x = 442,409,377,185.18/763,839.18
  6. Step 6: Final answer
    x = 579,191.78

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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.