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Finding the Fourth Proportional to 439,651.68, 606,686.40 and 246,033.76

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Solution

The fourth proportional to 439,651.68, 606,686.40 and 246,033.76 is: 339,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,651.68 : 606,686.40 = 246,033.76 : x
  2. Step 2: Convert to fraction form
    439,651.68/606,686.40 = 246,033.76/x
  3. Step 3: Cross multiply
    439,651.68x = 606,686.40 × 246,033.76
  4. Step 4: Simplify right side
    439,651.68x = 149,265,336,132.86
  5. Step 5: Solve for x
    x = 149,265,336,132.86/439,651.68
  6. Step 6: Final answer
    x = 339,508.17

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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.