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Finding the Fourth Proportional to 372,448.54, 514,034.31 and 219,437.82

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Solution

The fourth proportional to 372,448.54, 514,034.31 and 219,437.82 is: 302,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,448.54 : 514,034.31 = 219,437.82 : x
  2. Step 2: Convert to fraction form
    372,448.54/514,034.31 = 219,437.82/x
  3. Step 3: Cross multiply
    372,448.54x = 514,034.31 × 219,437.82
  4. Step 4: Simplify right side
    372,448.54x = 112,798,568,391.60
  5. Step 5: Solve for x
    x = 112,798,568,391.60/372,448.54
  6. Step 6: Final answer
    x = 302,856.79

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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.