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Finding the Fourth Proportional to 325,717.20, 488,575.80 and 246,985.20

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Solution

The fourth proportional to 325,717.20, 488,575.80 and 246,985.20 is: 370,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,717.20 : 488,575.80 = 246,985.20 : x
  2. Step 2: Convert to fraction form
    325,717.20/488,575.80 = 246,985.20/x
  3. Step 3: Cross multiply
    325,717.20x = 488,575.80 × 246,985.20
  4. Step 4: Simplify right side
    325,717.20x = 120,670,991,678.16
  5. Step 5: Solve for x
    x = 120,670,991,678.16/325,717.20
  6. Step 6: Final answer
    x = 370,477.80

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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.