Home / 643,919.04-965,659.86-223,096.68

Finding the Fourth Proportional to 643,919.04, 965,659.86 and 223,096.68

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Solution

The fourth proportional to 643,919.04, 965,659.86 and 223,096.68 is: 334,569.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,919.04 : 965,659.86 = 223,096.68 : x
  2. Step 2: Convert to fraction form
    643,919.04/965,659.86 = 223,096.68/x
  3. Step 3: Cross multiply
    643,919.04x = 965,659.86 × 223,096.68
  4. Step 4: Simplify right side
    643,919.04x = 215,435,508,775.27
  5. Step 5: Solve for x
    x = 215,435,508,775.27/643,919.04
  6. Step 6: Final answer
    x = 334,569.25

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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.