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Finding the Fourth Proportional to 411,343.51, 617,222.85 and 186,560.58

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Solution

The fourth proportional to 411,343.51, 617,222.85 and 186,560.58 is: 279,935.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,343.51 : 617,222.85 = 186,560.58 : x
  2. Step 2: Convert to fraction form
    411,343.51/617,222.85 = 186,560.58/x
  3. Step 3: Cross multiply
    411,343.51x = 617,222.85 × 186,560.58
  4. Step 4: Simplify right side
    411,343.51x = 115,149,452,185.65
  5. Step 5: Solve for x
    x = 115,149,452,185.65/411,343.51
  6. Step 6: Final answer
    x = 279,935.02

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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.