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Finding the Fourth Proportional to 388,659.48, 582,484.26 and 175,270.68

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Solution

The fourth proportional to 388,659.48, 582,484.26 and 175,270.68 is: 262,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,659.48 : 582,484.26 = 175,270.68 : x
  2. Step 2: Convert to fraction form
    388,659.48/582,484.26 = 175,270.68/x
  3. Step 3: Cross multiply
    388,659.48x = 582,484.26 × 175,270.68
  4. Step 4: Simplify right side
    388,659.48x = 102,092,412,339.50
  5. Step 5: Solve for x
    x = 102,092,412,339.50/388,659.48
  6. Step 6: Final answer
    x = 262,678.30

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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.