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Finding the Fourth Proportional to 699,808.17, 966,200.09 and 538,378.41

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Solution

The fourth proportional to 699,808.17, 966,200.09 and 538,378.41 is: 743,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,808.17 : 966,200.09 = 538,378.41 : x
  2. Step 2: Convert to fraction form
    699,808.17/966,200.09 = 538,378.41/x
  3. Step 3: Cross multiply
    699,808.17x = 966,200.09 × 538,378.41
  4. Step 4: Simplify right side
    699,808.17x = 520,181,265,504.17
  5. Step 5: Solve for x
    x = 520,181,265,504.17/699,808.17
  6. Step 6: Final answer
    x = 743,319.80

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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.