Home / 643,908.20-965,862.30-223,184.07

Finding the Fourth Proportional to 643,908.20, 965,862.30 and 223,184.07

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Solution

The fourth proportional to 643,908.20, 965,862.30 and 223,184.07 is: 334,776.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,908.20 : 965,862.30 = 223,184.07 : x
  2. Step 2: Convert to fraction form
    643,908.20/965,862.30 = 223,184.07/x
  3. Step 3: Cross multiply
    643,908.20x = 965,862.30 × 223,184.07
  4. Step 4: Simplify right side
    643,908.20x = 215,565,079,173.56
  5. Step 5: Solve for x
    x = 215,565,079,173.56/643,908.20
  6. Step 6: Final answer
    x = 334,776.11

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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.