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Finding the Fourth Proportional to 363,753.32, 501,979.67 and 210,880.11

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Solution

The fourth proportional to 363,753.32, 501,979.67 and 210,880.11 is: 291,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,753.32 : 501,979.67 = 210,880.11 : x
  2. Step 2: Convert to fraction form
    363,753.32/501,979.67 = 210,880.11/x
  3. Step 3: Cross multiply
    363,753.32x = 501,979.67 × 210,880.11
  4. Step 4: Simplify right side
    363,753.32x = 105,857,526,972.96
  5. Step 5: Solve for x
    x = 105,857,526,972.96/363,753.32
  6. Step 6: Final answer
    x = 291,014.60

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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.