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Finding the Fourth Proportional to 443,005.48, 663,415.26 and 252,994.60

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Solution

The fourth proportional to 443,005.48, 663,415.26 and 252,994.60 is: 378,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,005.48 : 663,415.26 = 252,994.60 : x
  2. Step 2: Convert to fraction form
    443,005.48/663,415.26 = 252,994.60/x
  3. Step 3: Cross multiply
    443,005.48x = 663,415.26 × 252,994.60
  4. Step 4: Simplify right side
    443,005.48x = 167,840,478,337.60
  5. Step 5: Solve for x
    x = 167,840,478,337.60/443,005.48
  6. Step 6: Final answer
    x = 378,867.72

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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.