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Finding the Fourth Proportional to 978,297.20, 1,467,883.20 and 347,663.60

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Solution

The fourth proportional to 978,297.20, 1,467,883.20 and 347,663.60 is: 521,650.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,297.20 : 1,467,883.20 = 347,663.60 : x
  2. Step 2: Convert to fraction form
    978,297.20/1,467,883.20 = 347,663.60/x
  3. Step 3: Cross multiply
    978,297.20x = 1,467,883.20 × 347,663.60
  4. Step 4: Simplify right side
    978,297.20x = 510,329,557,691.52
  5. Step 5: Solve for x
    x = 510,329,557,691.52/978,297.20
  6. Step 6: Final answer
    x = 521,650.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.