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Finding the Fourth Proportional to 503,898.78, 695,380.29 and 277,544.28

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Solution

The fourth proportional to 503,898.78, 695,380.29 and 277,544.28 is: 383,011.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,898.78 : 695,380.29 = 277,544.28 : x
  2. Step 2: Convert to fraction form
    503,898.78/695,380.29 = 277,544.28/x
  3. Step 3: Cross multiply
    503,898.78x = 695,380.29 × 277,544.28
  4. Step 4: Simplify right side
    503,898.78x = 192,998,821,914.24
  5. Step 5: Solve for x
    x = 192,998,821,914.24/503,898.78
  6. Step 6: Final answer
    x = 383,011.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.