Home / 643,591.37-965,543.08-194,285.38

Finding the Fourth Proportional to 643,591.37, 965,543.08 and 194,285.38

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Solution

The fourth proportional to 643,591.37, 965,543.08 and 194,285.38 is: 291,475.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,591.37 : 965,543.08 = 194,285.38 : x
  2. Step 2: Convert to fraction form
    643,591.37/965,543.08 = 194,285.38/x
  3. Step 3: Cross multiply
    643,591.37x = 965,543.08 × 194,285.38
  4. Step 4: Simplify right side
    643,591.37x = 187,590,904,204.17
  5. Step 5: Solve for x
    x = 187,590,904,204.17/643,591.37
  6. Step 6: Final answer
    x = 291,475.17

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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.