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Finding the Fourth Proportional to 855,695.20, 1,283,542.80 and 224,672.80

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Solution

The fourth proportional to 855,695.20, 1,283,542.80 and 224,672.80 is: 337,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,695.20 : 1,283,542.80 = 224,672.80 : x
  2. Step 2: Convert to fraction form
    855,695.20/1,283,542.80 = 224,672.80/x
  3. Step 3: Cross multiply
    855,695.20x = 1,283,542.80 × 224,672.80
  4. Step 4: Simplify right side
    855,695.20x = 288,377,154,795.84
  5. Step 5: Solve for x
    x = 288,377,154,795.84/855,695.20
  6. Step 6: Final answer
    x = 337,009.20

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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.