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Finding the Fourth Proportional to 505,801.38, 697,997.73 and 276,353.76

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Solution

The fourth proportional to 505,801.38, 697,997.73 and 276,353.76 is: 381,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,801.38 : 697,997.73 = 276,353.76 : x
  2. Step 2: Convert to fraction form
    505,801.38/697,997.73 = 276,353.76/x
  3. Step 3: Cross multiply
    505,801.38x = 697,997.73 × 276,353.76
  4. Step 4: Simplify right side
    505,801.38x = 192,894,297,156.97
  5. Step 5: Solve for x
    x = 192,894,297,156.97/505,801.38
  6. Step 6: Final answer
    x = 381,363.72

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1.5x scale

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.