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Finding the Fourth Proportional to 579,728.80, 869,722.80 and 224,711.20

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Solution

The fourth proportional to 579,728.80, 869,722.80 and 224,711.20 is: 337,117.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,728.80 : 869,722.80 = 224,711.20 : x
  2. Step 2: Convert to fraction form
    579,728.80/869,722.80 = 224,711.20/x
  3. Step 3: Cross multiply
    579,728.80x = 869,722.80 × 224,711.20
  4. Step 4: Simplify right side
    579,728.80x = 195,436,454,055.36
  5. Step 5: Solve for x
    x = 195,436,454,055.36/579,728.80
  6. Step 6: Final answer
    x = 337,117.03

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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.