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Finding the Fourth Proportional to 326,443.32, 488,647.38 and 251,368.44

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Solution

The fourth proportional to 326,443.32, 488,647.38 and 251,368.44 is: 376,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,443.32 : 488,647.38 = 251,368.44 : x
  2. Step 2: Convert to fraction form
    326,443.32/488,647.38 = 251,368.44/x
  3. Step 3: Cross multiply
    326,443.32x = 488,647.38 × 251,368.44
  4. Step 4: Simplify right side
    326,443.32x = 122,830,529,620.69
  5. Step 5: Solve for x
    x = 122,830,529,620.69/326,443.32
  6. Step 6: Final answer
    x = 376,269.09

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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.