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Finding the Fourth Proportional to 372,607.80, 514,266.06 and 219,637.17

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Solution

The fourth proportional to 372,607.80, 514,266.06 and 219,637.17 is: 303,138.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,607.80 : 514,266.06 = 219,637.17 : x
  2. Step 2: Convert to fraction form
    372,607.80/514,266.06 = 219,637.17/x
  3. Step 3: Cross multiply
    372,607.80x = 514,266.06 × 219,637.17
  4. Step 4: Simplify right side
    372,607.80x = 112,951,942,869.09
  5. Step 5: Solve for x
    x = 112,951,942,869.09/372,607.80
  6. Step 6: Final answer
    x = 303,138.97

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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.