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Finding the Fourth Proportional to 401,474.96, 554,027.16 and 248,472.48

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Solution

The fourth proportional to 401,474.96, 554,027.16 and 248,472.48 is: 342,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,474.96 : 554,027.16 = 248,472.48 : x
  2. Step 2: Convert to fraction form
    401,474.96/554,027.16 = 248,472.48/x
  3. Step 3: Cross multiply
    401,474.96x = 554,027.16 × 248,472.48
  4. Step 4: Simplify right side
    401,474.96x = 137,660,502,432.56
  5. Step 5: Solve for x
    x = 137,660,502,432.56/401,474.96
  6. Step 6: Final answer
    x = 342,886.89

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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.