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Finding the Fourth Proportional to 622,392, 858,849.84 and 350,373

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Solution

The fourth proportional to 622,392, 858,849.84 and 350,373 is: 483,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,392 : 858,849.84 = 350,373 : x
  2. Step 2: Convert to fraction form
    622,392/858,849.84 = 350,373/x
  3. Step 3: Cross multiply
    622,392x = 858,849.84 × 350,373
  4. Step 4: Simplify right side
    622,392x = 300,917,794,990.32
  5. Step 5: Solve for x
    x = 300,917,794,990.32/622,392
  6. Step 6: Final answer
    x = 483,485.96

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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.