Home / 326,928.11-491,130.38-193,895.64

Finding the Fourth Proportional to 326,928.11, 491,130.38 and 193,895.64

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Solution

The fourth proportional to 326,928.11, 491,130.38 and 193,895.64 is: 291,281.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,928.11 : 491,130.38 = 193,895.64 : x
  2. Step 2: Convert to fraction form
    326,928.11/491,130.38 = 193,895.64/x
  3. Step 3: Cross multiply
    326,928.11x = 491,130.38 × 193,895.64
  4. Step 4: Simplify right side
    326,928.11x = 95,228,039,838.28
  5. Step 5: Solve for x
    x = 95,228,039,838.28/326,928.11
  6. Step 6: Final answer
    x = 291,281.29

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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.