Home / 611,876.97-844,511.58-390,972.96

Finding the Fourth Proportional to 611,876.97, 844,511.58 and 390,972.96

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Solution

The fourth proportional to 611,876.97, 844,511.58 and 390,972.96 is: 539,620.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,876.97 : 844,511.58 = 390,972.96 : x
  2. Step 2: Convert to fraction form
    611,876.97/844,511.58 = 390,972.96/x
  3. Step 3: Cross multiply
    611,876.97x = 844,511.58 × 390,972.96
  4. Step 4: Simplify right side
    611,876.97x = 330,181,192,186.88
  5. Step 5: Solve for x
    x = 330,181,192,186.88/611,876.97
  6. Step 6: Final answer
    x = 539,620.23

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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.