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Finding the Fourth Proportional to 363,278.94, 501,398.55 and 212,424.54

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Solution

The fourth proportional to 363,278.94, 501,398.55 and 212,424.54 is: 293,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,278.94 : 501,398.55 = 212,424.54 : x
  2. Step 2: Convert to fraction form
    363,278.94/501,398.55 = 212,424.54/x
  3. Step 3: Cross multiply
    363,278.94x = 501,398.55 × 212,424.54
  4. Step 4: Simplify right side
    363,278.94x = 106,509,356,340.42
  5. Step 5: Solve for x
    x = 106,509,356,340.42/363,278.94
  6. Step 6: Final answer
    x = 293,188.91

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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.