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Finding the Fourth Proportional to 636,126, 876,928.76 and 444,544.56

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Solution

The fourth proportional to 636,126, 876,928.76 and 444,544.56 is: 612,824.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,126 : 876,928.76 = 444,544.56 : x
  2. Step 2: Convert to fraction form
    636,126/876,928.76 = 444,544.56/x
  3. Step 3: Cross multiply
    636,126x = 876,928.76 × 444,544.56
  4. Step 4: Simplify right side
    636,126x = 389,833,909,765.55
  5. Step 5: Solve for x
    x = 389,833,909,765.55/636,126
  6. Step 6: Final answer
    x = 612,824.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.