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Finding the Fourth Proportional to 344,487.74, 475,486.61 and 223,621.97

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Solution

The fourth proportional to 344,487.74, 475,486.61 and 223,621.97 is: 308,659.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,487.74 : 475,486.61 = 223,621.97 : x
  2. Step 2: Convert to fraction form
    344,487.74/475,486.61 = 223,621.97/x
  3. Step 3: Cross multiply
    344,487.74x = 475,486.61 × 223,621.97
  4. Step 4: Simplify right side
    344,487.74x = 106,329,248,941.28
  5. Step 5: Solve for x
    x = 106,329,248,941.28/344,487.74
  6. Step 6: Final answer
    x = 308,659.03

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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.