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Finding the Fourth Proportional to 388,292.74, 582,201.27 and 151,358.63

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Solution

The fourth proportional to 388,292.74, 582,201.27 and 151,358.63 is: 226,945.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,292.74 : 582,201.27 = 151,358.63 : x
  2. Step 2: Convert to fraction form
    388,292.74/582,201.27 = 151,358.63/x
  3. Step 3: Cross multiply
    388,292.74x = 582,201.27 × 151,358.63
  4. Step 4: Simplify right side
    388,292.74x = 88,121,183,700.45
  5. Step 5: Solve for x
    x = 88,121,183,700.45/388,292.74
  6. Step 6: Final answer
    x = 226,945.23

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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.