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Finding the Fourth Proportional to 535,276.33, 803,356.22 and 269,112.49

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Solution

The fourth proportional to 535,276.33, 803,356.22 and 269,112.49 is: 403,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,276.33 : 803,356.22 = 269,112.49 : x
  2. Step 2: Convert to fraction form
    535,276.33/803,356.22 = 269,112.49/x
  3. Step 3: Cross multiply
    535,276.33x = 803,356.22 × 269,112.49
  4. Step 4: Simplify right side
    535,276.33x = 216,193,191,375.63
  5. Step 5: Solve for x
    x = 216,193,191,375.63/535,276.33
  6. Step 6: Final answer
    x = 403,890.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.