Home / 643,363.02-965,051.45-194,087.78

Finding the Fourth Proportional to 643,363.02, 965,051.45 and 194,087.78

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Solution

The fourth proportional to 643,363.02, 965,051.45 and 194,087.78 is: 291,133.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,363.02 : 965,051.45 = 194,087.78 : x
  2. Step 2: Convert to fraction form
    643,363.02/965,051.45 = 194,087.78/x
  3. Step 3: Cross multiply
    643,363.02x = 965,051.45 × 194,087.78
  4. Step 4: Simplify right side
    643,363.02x = 187,304,691,588.87
  5. Step 5: Solve for x
    x = 187,304,691,588.87/643,363.02
  6. Step 6: Final answer
    x = 291,133.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.