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Finding the Fourth Proportional to 577,123.30, 865,699.80 and 273,446.20

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Solution

The fourth proportional to 577,123.30, 865,699.80 and 273,446.20 is: 410,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,123.30 : 865,699.80 = 273,446.20 : x
  2. Step 2: Convert to fraction form
    577,123.30/865,699.80 = 273,446.20/x
  3. Step 3: Cross multiply
    577,123.30x = 865,699.80 × 273,446.20
  4. Step 4: Simplify right side
    577,123.30x = 236,722,320,650.76
  5. Step 5: Solve for x
    x = 236,722,320,650.76/577,123.30
  6. Step 6: Final answer
    x = 410,176.34

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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.