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Finding the Fourth Proportional to 439,859.70, 606,989.84 and 248,877.23

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Solution

The fourth proportional to 439,859.70, 606,989.84 and 248,877.23 is: 343,441.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,859.70 : 606,989.84 = 248,877.23 : x
  2. Step 2: Convert to fraction form
    439,859.70/606,989.84 = 248,877.23/x
  3. Step 3: Cross multiply
    439,859.70x = 606,989.84 × 248,877.23
  4. Step 4: Simplify right side
    439,859.70x = 151,065,945,738.01
  5. Step 5: Solve for x
    x = 151,065,945,738.01/439,859.70
  6. Step 6: Final answer
    x = 343,441.21

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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.