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Finding the Fourth Proportional to 388,648.33, 582,529.32 and 177,843.40

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Solution

The fourth proportional to 388,648.33, 582,529.32 and 177,843.40 is: 266,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,648.33 : 582,529.32 = 177,843.40 : x
  2. Step 2: Convert to fraction form
    388,648.33/582,529.32 = 177,843.40/x
  3. Step 3: Cross multiply
    388,648.33x = 582,529.32 × 177,843.40
  4. Step 4: Simplify right side
    388,648.33x = 103,598,993,412.17
  5. Step 5: Solve for x
    x = 103,598,993,412.17/388,648.33
  6. Step 6: Final answer
    x = 266,562.30

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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.