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Finding the Fourth Proportional to 622,647,909.57, 859,264,323.65 and 371,774,224.20

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Solution

The fourth proportional to 622,647,909.57, 859,264,323.65 and 371,774,224.20 is: 513,054,524.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,647,909.57 : 859,264,323.65 = 371,774,224.20 : x
  2. Step 2: Convert to fraction form
    622,647,909.57/859,264,323.65 = 371,774,224.20/x
  3. Step 3: Cross multiply
    622,647,909.57x = 859,264,323.65 × 371,774,224.20
  4. Step 4: Simplify right side
    622,647,909.57x = 319,452,327,305,857,600
  5. Step 5: Solve for x
    x = 319,452,327,305,857,600/622,647,909.57
  6. Step 6: Final answer
    x = 513,054,524.71

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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.