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Finding the Fourth Proportional to 665,571.40, 996,953.10 and 441,039.40

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Solution

The fourth proportional to 665,571.40, 996,953.10 and 441,039.40 is: 660,628.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,571.40 : 996,953.10 = 441,039.40 : x
  2. Step 2: Convert to fraction form
    665,571.40/996,953.10 = 441,039.40/x
  3. Step 3: Cross multiply
    665,571.40x = 996,953.10 × 441,039.40
  4. Step 4: Simplify right side
    665,571.40x = 439,695,597,052.14
  5. Step 5: Solve for x
    x = 439,695,597,052.14/665,571.40
  6. Step 6: Final answer
    x = 660,628.74

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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.