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Finding the Fourth Proportional to 467,805.11, 645,571.42 and 252,945.32

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Solution

The fourth proportional to 467,805.11, 645,571.42 and 252,945.32 is: 349,064.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,805.11 : 645,571.42 = 252,945.32 : x
  2. Step 2: Convert to fraction form
    467,805.11/645,571.42 = 252,945.32/x
  3. Step 3: Cross multiply
    467,805.11x = 645,571.42 × 252,945.32
  4. Step 4: Simplify right side
    467,805.11x = 163,294,265,554.53
  5. Step 5: Solve for x
    x = 163,294,265,554.53/467,805.11
  6. Step 6: Final answer
    x = 349,064.74

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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.