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Finding the Fourth Proportional to 377,519.76, 520,964.46 and 207,753.48

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Solution

The fourth proportional to 377,519.76, 520,964.46 and 207,753.48 is: 286,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,519.76 : 520,964.46 = 207,753.48 : x
  2. Step 2: Convert to fraction form
    377,519.76/520,964.46 = 207,753.48/x
  3. Step 3: Cross multiply
    377,519.76x = 520,964.46 × 207,753.48
  4. Step 4: Simplify right side
    377,519.76x = 108,232,179,521.32
  5. Step 5: Solve for x
    x = 108,232,179,521.32/377,519.76
  6. Step 6: Final answer
    x = 286,692.75

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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.