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Finding the Fourth Proportional to 665,556.40, 996,930.60 and 441,024.40

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Solution

The fourth proportional to 665,556.40, 996,930.60 and 441,024.40 is: 660,606.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,556.40 : 996,930.60 = 441,024.40 : x
  2. Step 2: Convert to fraction form
    665,556.40/996,930.60 = 441,024.40/x
  3. Step 3: Cross multiply
    665,556.40x = 996,930.60 × 441,024.40
  4. Step 4: Simplify right side
    665,556.40x = 439,670,719,706.64
  5. Step 5: Solve for x
    x = 439,670,719,706.64/665,556.40
  6. Step 6: Final answer
    x = 660,606.25

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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.