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Finding the Fourth Proportional to 351,294.11, 484,795.29 and 213,426.11

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Solution

The fourth proportional to 351,294.11, 484,795.29 and 213,426.11 is: 294,533.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,294.11 : 484,795.29 = 213,426.11 : x
  2. Step 2: Convert to fraction form
    351,294.11/484,795.29 = 213,426.11/x
  3. Step 3: Cross multiply
    351,294.11x = 484,795.29 × 213,426.11
  4. Step 4: Simplify right side
    351,294.11x = 103,467,970,467.05
  5. Step 5: Solve for x
    x = 103,467,970,467.05/351,294.11
  6. Step 6: Final answer
    x = 294,533.75

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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.