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Finding the Fourth Proportional to 399,993.14, 552,041.31 and 227,972.94

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Solution

The fourth proportional to 399,993.14, 552,041.31 and 227,972.94 is: 314,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,993.14 : 552,041.31 = 227,972.94 : x
  2. Step 2: Convert to fraction form
    399,993.14/552,041.31 = 227,972.94/x
  3. Step 3: Cross multiply
    399,993.14x = 552,041.31 × 227,972.94
  4. Step 4: Simplify right side
    399,993.14x = 125,850,480,442.15
  5. Step 5: Solve for x
    x = 125,850,480,442.15/399,993.14
  6. Step 6: Final answer
    x = 314,631.60

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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.