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Finding the Fourth Proportional to 372,618.68, 514,280.88 and 219,647.81

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Solution

The fourth proportional to 372,618.68, 514,280.88 and 219,647.81 is: 303,153.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,618.68 : 514,280.88 = 219,647.81 : x
  2. Step 2: Convert to fraction form
    372,618.68/514,280.88 = 219,647.81/x
  3. Step 3: Cross multiply
    372,618.68x = 514,280.88 × 219,647.81
  4. Step 4: Simplify right side
    372,618.68x = 112,960,667,918.63
  5. Step 5: Solve for x
    x = 112,960,667,918.63/372,618.68
  6. Step 6: Final answer
    x = 303,153.53

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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.