Home / 643,470.10-965,212.04-194,195.00

Finding the Fourth Proportional to 643,470.10, 965,212.04 and 194,195.00

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Solution

The fourth proportional to 643,470.10, 965,212.04 and 194,195.00 is: 291,294.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,470.10 : 965,212.04 = 194,195.00 : x
  2. Step 2: Convert to fraction form
    643,470.10/965,212.04 = 194,195.00/x
  3. Step 3: Cross multiply
    643,470.10x = 965,212.04 × 194,195.00
  4. Step 4: Simplify right side
    643,470.10x = 187,439,355,006.32
  5. Step 5: Solve for x
    x = 187,439,355,006.32/643,470.10
  6. Step 6: Final answer
    x = 291,294.58

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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.