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Finding the Fourth Proportional to 372,663.83, 514,268.02 and 217,641.80

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Solution

The fourth proportional to 372,663.83, 514,268.02 and 217,641.80 is: 300,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,663.83 : 514,268.02 = 217,641.80 : x
  2. Step 2: Convert to fraction form
    372,663.83/514,268.02 = 217,641.80/x
  3. Step 3: Cross multiply
    372,663.83x = 514,268.02 × 217,641.80
  4. Step 4: Simplify right side
    372,663.83x = 111,926,217,555.24
  5. Step 5: Solve for x
    x = 111,926,217,555.24/372,663.83
  6. Step 6: Final answer
    x = 300,340.97

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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.