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Finding the Fourth Proportional to 372,718.40, 514,337.34 and 227,766.56

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Solution

The fourth proportional to 372,718.40, 514,337.34 and 227,766.56 is: 314,309.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,718.40 : 514,337.34 = 227,766.56 : x
  2. Step 2: Convert to fraction form
    372,718.40/514,337.34 = 227,766.56/x
  3. Step 3: Cross multiply
    372,718.40x = 514,337.34 × 227,766.56
  4. Step 4: Simplify right side
    372,718.40x = 117,148,846,611.35
  5. Step 5: Solve for x
    x = 117,148,846,611.35/372,718.40
  6. Step 6: Final answer
    x = 314,309.27

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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.