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Finding the Fourth Proportional to 665,561.90, 996,938.85 and 441,029.90

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Solution

The fourth proportional to 665,561.90, 996,938.85 and 441,029.90 is: 660,614.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,561.90 : 996,938.85 = 441,029.90 : x
  2. Step 2: Convert to fraction form
    665,561.90/996,938.85 = 441,029.90/x
  3. Step 3: Cross multiply
    665,561.90x = 996,938.85 × 441,029.90
  4. Step 4: Simplify right side
    665,561.90x = 439,679,841,321.62
  5. Step 5: Solve for x
    x = 439,679,841,321.62/665,561.90
  6. Step 6: Final answer
    x = 660,614.50

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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.