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Finding the Fourth Proportional to 325,898.80, 488,848.20 and 297,905.20

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Solution

The fourth proportional to 325,898.80, 488,848.20 and 297,905.20 is: 446,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,898.80 : 488,848.20 = 297,905.20 : x
  2. Step 2: Convert to fraction form
    325,898.80/488,848.20 = 297,905.20/x
  3. Step 3: Cross multiply
    325,898.80x = 488,848.20 × 297,905.20
  4. Step 4: Simplify right side
    325,898.80x = 145,630,420,790.64
  5. Step 5: Solve for x
    x = 145,630,420,790.64/325,898.80
  6. Step 6: Final answer
    x = 446,857.80

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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.