Home / 389,025.27-536,869.89-219,255.75

Finding the Fourth Proportional to 389,025.27, 536,869.89 and 219,255.75

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Solution

The fourth proportional to 389,025.27, 536,869.89 and 219,255.75 is: 302,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,025.27 : 536,869.89 = 219,255.75 : x
  2. Step 2: Convert to fraction form
    389,025.27/536,869.89 = 219,255.75/x
  3. Step 3: Cross multiply
    389,025.27x = 536,869.89 × 219,255.75
  4. Step 4: Simplify right side
    389,025.27x = 117,711,810,384.37
  5. Step 5: Solve for x
    x = 117,711,810,384.37/389,025.27
  6. Step 6: Final answer
    x = 302,581.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.