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Finding the Fourth Proportional to 348,218.78, 522,475.79 and 190,262.70

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Solution

The fourth proportional to 348,218.78, 522,475.79 and 190,262.70 is: 285,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,218.78 : 522,475.79 = 190,262.70 : x
  2. Step 2: Convert to fraction form
    348,218.78/522,475.79 = 190,262.70/x
  3. Step 3: Cross multiply
    348,218.78x = 522,475.79 × 190,262.70
  4. Step 4: Simplify right side
    348,218.78x = 99,407,653,538.72
  5. Step 5: Solve for x
    x = 99,407,653,538.72/348,218.78
  6. Step 6: Final answer
    x = 285,474.71

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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.