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Finding the Fourth Proportional to 439,398.37, 606,361.71 and 248,411.81

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Solution

The fourth proportional to 439,398.37, 606,361.71 and 248,411.81 is: 342,803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,398.37 : 606,361.71 = 248,411.81 : x
  2. Step 2: Convert to fraction form
    439,398.37/606,361.71 = 248,411.81/x
  3. Step 3: Cross multiply
    439,398.37x = 606,361.71 × 248,411.81
  4. Step 4: Simplify right side
    439,398.37x = 150,627,409,895.80
  5. Step 5: Solve for x
    x = 150,627,409,895.80/439,398.37
  6. Step 6: Final answer
    x = 342,803.76

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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.