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Finding the Fourth Proportional to 372,659.58, 514,262.14 and 217,637.54

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Solution

The fourth proportional to 372,659.58, 514,262.14 and 217,637.54 is: 300,335.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,659.58 : 514,262.14 = 217,637.54 : x
  2. Step 2: Convert to fraction form
    372,659.58/514,262.14 = 217,637.54/x
  3. Step 3: Cross multiply
    372,659.58x = 514,262.14 × 217,637.54
  4. Step 4: Simplify right side
    372,659.58x = 111,922,747,064.74
  5. Step 5: Solve for x
    x = 111,922,747,064.74/372,659.58
  6. Step 6: Final answer
    x = 300,335.09

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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.