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Finding the Fourth Proportional to 622,563.71, 858,990.26 and 350,577.45

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Solution

The fourth proportional to 622,563.71, 858,990.26 and 350,577.45 is: 483,713.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,563.71 : 858,990.26 = 350,577.45 : x
  2. Step 2: Convert to fraction form
    622,563.71/858,990.26 = 350,577.45/x
  3. Step 3: Cross multiply
    622,563.71x = 858,990.26 × 350,577.45
  4. Step 4: Simplify right side
    622,563.71x = 301,142,613,172.75
  5. Step 5: Solve for x
    x = 301,142,613,172.75/622,563.71
  6. Step 6: Final answer
    x = 483,713.73

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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.