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Finding the Fourth Proportional to 575,195.70, 862,145.55 and 275,819.70

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Solution

The fourth proportional to 575,195.70, 862,145.55 and 275,819.70 is: 413,418.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,195.70 : 862,145.55 = 275,819.70 : x
  2. Step 2: Convert to fraction form
    575,195.70/862,145.55 = 275,819.70/x
  3. Step 3: Cross multiply
    575,195.70x = 862,145.55 × 275,819.70
  4. Step 4: Simplify right side
    575,195.70x = 237,796,726,957.34
  5. Step 5: Solve for x
    x = 237,796,726,957.34/575,195.70
  6. Step 6: Final answer
    x = 413,418.82

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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.