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Finding the Fourth Proportional to 574,502.07, 861,812.10 and 219,814.41

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Solution

The fourth proportional to 574,502.07, 861,812.10 and 219,814.41 is: 329,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,502.07 : 861,812.10 = 219,814.41 : x
  2. Step 2: Convert to fraction form
    574,502.07/861,812.10 = 219,814.41/x
  3. Step 3: Cross multiply
    574,502.07x = 861,812.10 × 219,814.41
  4. Step 4: Simplify right side
    574,502.07x = 189,438,718,292.36
  5. Step 5: Solve for x
    x = 189,438,718,292.36/574,502.07
  6. Step 6: Final answer
    x = 329,744.19

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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.