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Finding the Fourth Proportional to 356,469.30, 533,719.80 and 277,737.30

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Solution

The fourth proportional to 356,469.30, 533,719.80 and 277,737.30 is: 415,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,469.30 : 533,719.80 = 277,737.30 : x
  2. Step 2: Convert to fraction form
    356,469.30/533,719.80 = 277,737.30/x
  3. Step 3: Cross multiply
    356,469.30x = 533,719.80 × 277,737.30
  4. Step 4: Simplify right side
    356,469.30x = 148,233,896,208.54
  5. Step 5: Solve for x
    x = 148,233,896,208.54/356,469.30
  6. Step 6: Final answer
    x = 415,839.17

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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.