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Finding the Fourth Proportional to 579,763.92, 869,637.78 and 200,960.40

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Solution

The fourth proportional to 579,763.92, 869,637.78 and 200,960.40 is: 301,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,763.92 : 869,637.78 = 200,960.40 : x
  2. Step 2: Convert to fraction form
    579,763.92/869,637.78 = 200,960.40/x
  3. Step 3: Cross multiply
    579,763.92x = 869,637.78 × 200,960.40
  4. Step 4: Simplify right side
    579,763.92x = 174,762,756,123.91
  5. Step 5: Solve for x
    x = 174,762,756,123.91/579,763.92
  6. Step 6: Final answer
    x = 301,437.79

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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.