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Finding the Fourth Proportional to 622,405.80, 933,608.70 and 608,581.80

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Solution

The fourth proportional to 622,405.80, 933,608.70 and 608,581.80 is: 912,872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,405.80 : 933,608.70 = 608,581.80 : x
  2. Step 2: Convert to fraction form
    622,405.80/933,608.70 = 608,581.80/x
  3. Step 3: Cross multiply
    622,405.80x = 933,608.70 × 608,581.80
  4. Step 4: Simplify right side
    622,405.80x = 568,177,263,141.66
  5. Step 5: Solve for x
    x = 568,177,263,141.66/622,405.80
  6. Step 6: Final answer
    x = 912,872.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.