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Finding the Fourth Proportional to 622,126.32, 858,550.35 and 350,203.95

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Solution

The fourth proportional to 622,126.32, 858,550.35 and 350,203.95 is: 483,290.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,126.32 : 858,550.35 = 350,203.95 : x
  2. Step 2: Convert to fraction form
    622,126.32/858,550.35 = 350,203.95/x
  3. Step 3: Cross multiply
    622,126.32x = 858,550.35 × 350,203.95
  4. Step 4: Simplify right side
    622,126.32x = 300,667,723,843.88
  5. Step 5: Solve for x
    x = 300,667,723,843.88/622,126.32
  6. Step 6: Final answer
    x = 483,290.47

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1.5x scale

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.