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Finding the Fourth Proportional to 484,309.72, 668,347.76 and 269,449.93

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Solution

The fourth proportional to 484,309.72, 668,347.76 and 269,449.93 is: 371,841.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,309.72 : 668,347.76 = 269,449.93 : x
  2. Step 2: Convert to fraction form
    484,309.72/668,347.76 = 269,449.93/x
  3. Step 3: Cross multiply
    484,309.72x = 668,347.76 × 269,449.93
  4. Step 4: Simplify right side
    484,309.72x = 180,086,257,147.66
  5. Step 5: Solve for x
    x = 180,086,257,147.66/484,309.72
  6. Step 6: Final answer
    x = 371,841.10

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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.