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Finding the Fourth Proportional to 617,813.44, 926,796.48 and 218,371.84

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Solution

The fourth proportional to 617,813.44, 926,796.48 and 218,371.84 is: 327,584.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,813.44 : 926,796.48 = 218,371.84 : x
  2. Step 2: Convert to fraction form
    617,813.44/926,796.48 = 218,371.84/x
  3. Step 3: Cross multiply
    617,813.44x = 926,796.48 × 218,371.84
  4. Step 4: Simplify right side
    617,813.44x = 202,386,252,643.12
  5. Step 5: Solve for x
    x = 202,386,252,643.12/617,813.44
  6. Step 6: Final answer
    x = 327,584.74

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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.