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Finding the Fourth Proportional to 372,994.26, 514,731.78 and 203,228.46

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Solution

The fourth proportional to 372,994.26, 514,731.78 and 203,228.46 is: 280,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,994.26 : 514,731.78 = 203,228.46 : x
  2. Step 2: Convert to fraction form
    372,994.26/514,731.78 = 203,228.46/x
  3. Step 3: Cross multiply
    372,994.26x = 514,731.78 × 203,228.46
  4. Step 4: Simplify right side
    372,994.26x = 104,608,146,962.46
  5. Step 5: Solve for x
    x = 104,608,146,962.46/372,994.26
  6. Step 6: Final answer
    x = 280,455.11

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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.