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Finding the Fourth Proportional to 699,817.17, 966,212.51 and 538,387.41

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Solution

The fourth proportional to 699,817.17, 966,212.51 and 538,387.41 is: 743,332.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,817.17 : 966,212.51 = 538,387.41 : x
  2. Step 2: Convert to fraction form
    699,817.17/966,212.51 = 538,387.41/x
  3. Step 3: Cross multiply
    699,817.17x = 966,212.51 × 538,387.41
  4. Step 4: Simplify right side
    699,817.17x = 520,196,650,768.50
  5. Step 5: Solve for x
    x = 520,196,650,768.50/699,817.17
  6. Step 6: Final answer
    x = 743,332.22

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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.