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Finding the Fourth Proportional to 364,198.97, 502,631.30 and 211,283.93

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Solution

The fourth proportional to 364,198.97, 502,631.30 and 211,283.93 is: 291,593.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,198.97 : 502,631.30 = 211,283.93 : x
  2. Step 2: Convert to fraction form
    364,198.97/502,631.30 = 211,283.93/x
  3. Step 3: Cross multiply
    364,198.97x = 502,631.30 × 211,283.93
  4. Step 4: Simplify right side
    364,198.97x = 106,197,918,189.80
  5. Step 5: Solve for x
    x = 106,197,918,189.80/364,198.97
  6. Step 6: Final answer
    x = 291,593.13

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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.