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Finding the Fourth Proportional to 622,112.60, 933,168.90 and 611,744.60

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Solution

The fourth proportional to 622,112.60, 933,168.90 and 611,744.60 is: 917,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,112.60 : 933,168.90 = 611,744.60 : x
  2. Step 2: Convert to fraction form
    622,112.60/933,168.90 = 611,744.60/x
  3. Step 3: Cross multiply
    622,112.60x = 933,168.90 × 611,744.60
  4. Step 4: Simplify right side
    622,112.60x = 570,861,035,462.94
  5. Step 5: Solve for x
    x = 570,861,035,462.94/622,112.60
  6. Step 6: Final answer
    x = 917,616.90

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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.