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Finding the Fourth Proportional to 439,474.52, 606,487.64 and 248,483.81

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Solution

The fourth proportional to 439,474.52, 606,487.64 and 248,483.81 is: 342,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,474.52 : 606,487.64 = 248,483.81 : x
  2. Step 2: Convert to fraction form
    439,474.52/606,487.64 = 248,483.81/x
  3. Step 3: Cross multiply
    439,474.52x = 606,487.64 × 248,483.81
  4. Step 4: Simplify right side
    439,474.52x = 150,702,359,778.91
  5. Step 5: Solve for x
    x = 150,702,359,778.91/439,474.52
  6. Step 6: Final answer
    x = 342,914.90

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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.