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Finding the Fourth Proportional to 443,101.92, 664,808.40 and 276,695.52

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Solution

The fourth proportional to 443,101.92, 664,808.40 and 276,695.52 is: 415,140.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,101.92 : 664,808.40 = 276,695.52 : x
  2. Step 2: Convert to fraction form
    443,101.92/664,808.40 = 276,695.52/x
  3. Step 3: Cross multiply
    443,101.92x = 664,808.40 × 276,695.52
  4. Step 4: Simplify right side
    443,101.92x = 183,949,505,938.37
  5. Step 5: Solve for x
    x = 183,949,505,938.37/443,101.92
  6. Step 6: Final answer
    x = 415,140.39

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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.