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Finding the Fourth Proportional to 622,901.20, 933,039.60 and 504,803.20

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Solution

The fourth proportional to 622,901.20, 933,039.60 and 504,803.20 is: 756,141.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,901.20 : 933,039.60 = 504,803.20 : x
  2. Step 2: Convert to fraction form
    622,901.20/933,039.60 = 504,803.20/x
  3. Step 3: Cross multiply
    622,901.20x = 933,039.60 × 504,803.20
  4. Step 4: Simplify right side
    622,901.20x = 471,001,375,806.72
  5. Step 5: Solve for x
    x = 471,001,375,806.72/622,901.20
  6. Step 6: Final answer
    x = 756,141.38

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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.