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Finding the Fourth Proportional to 440,882.08, 661,308.54 and 191,564.08

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Solution

The fourth proportional to 440,882.08, 661,308.54 and 191,564.08 is: 287,339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,882.08 : 661,308.54 = 191,564.08 : x
  2. Step 2: Convert to fraction form
    440,882.08/661,308.54 = 191,564.08/x
  3. Step 3: Cross multiply
    440,882.08x = 661,308.54 × 191,564.08
  4. Step 4: Simplify right side
    440,882.08x = 126,682,962,061.24
  5. Step 5: Solve for x
    x = 126,682,962,061.24/440,882.08
  6. Step 6: Final answer
    x = 287,339.78

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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.