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Finding the Fourth Proportional to 372,806.48, 514,478.80 and 203,040.48

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Solution

The fourth proportional to 372,806.48, 514,478.80 and 203,040.48 is: 280,199.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,806.48 : 514,478.80 = 203,040.48 : x
  2. Step 2: Convert to fraction form
    372,806.48/514,478.80 = 203,040.48/x
  3. Step 3: Cross multiply
    372,806.48x = 514,478.80 × 203,040.48
  4. Step 4: Simplify right side
    372,806.48x = 104,460,022,501.82
  5. Step 5: Solve for x
    x = 104,460,022,501.82/372,806.48
  6. Step 6: Final answer
    x = 280,199.05

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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.