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Finding the Fourth Proportional to 622,840.80, 933,915.60 and 248,440.80

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Solution

The fourth proportional to 622,840.80, 933,915.60 and 248,440.80 is: 372,523.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,840.80 : 933,915.60 = 248,440.80 : x
  2. Step 2: Convert to fraction form
    622,840.80/933,915.60 = 248,440.80/x
  3. Step 3: Cross multiply
    622,840.80x = 933,915.60 × 248,440.80
  4. Step 4: Simplify right side
    622,840.80x = 232,022,738,796.48
  5. Step 5: Solve for x
    x = 232,022,738,796.48/622,840.80
  6. Step 6: Final answer
    x = 372,523.35

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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.