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Finding the Fourth Proportional to 372,804.60, 514,471.02 and 203,039.64

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Solution

The fourth proportional to 372,804.60, 514,471.02 and 203,039.64 is: 280,195.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,804.60 : 514,471.02 = 203,039.64 : x
  2. Step 2: Convert to fraction form
    372,804.60/514,471.02 = 203,039.64/x
  3. Step 3: Cross multiply
    372,804.60x = 514,471.02 × 203,039.64
  4. Step 4: Simplify right side
    372,804.60x = 104,458,010,691.23
  5. Step 5: Solve for x
    x = 104,458,010,691.23/372,804.60
  6. Step 6: Final answer
    x = 280,195.07

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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.