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Finding the Fourth Proportional to 392,506.37, 588,877.74 and 122,623.60

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Solution

The fourth proportional to 392,506.37, 588,877.74 and 122,623.60 is: 183,972.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,506.37 : 588,877.74 = 122,623.60 : x
  2. Step 2: Convert to fraction form
    392,506.37/588,877.74 = 122,623.60/x
  3. Step 3: Cross multiply
    392,506.37x = 588,877.74 × 122,623.60
  4. Step 4: Simplify right side
    392,506.37x = 72,210,307,825.55
  5. Step 5: Solve for x
    x = 72,210,307,825.55/392,506.37
  6. Step 6: Final answer
    x = 183,972.32

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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.