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Finding the Fourth Proportional to 617,611.11, 926,491.38 and 218,170.14

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Solution

The fourth proportional to 617,611.11, 926,491.38 and 218,170.14 is: 327,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,611.11 : 926,491.38 = 218,170.14 : x
  2. Step 2: Convert to fraction form
    617,611.11/926,491.38 = 218,170.14/x
  3. Step 3: Cross multiply
    617,611.11x = 926,491.38 × 218,170.14
  4. Step 4: Simplify right side
    617,611.11x = 202,132,754,083.39
  5. Step 5: Solve for x
    x = 202,132,754,083.39/617,611.11
  6. Step 6: Final answer
    x = 327,281.60

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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.