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Finding the Fourth Proportional to 499,551.47, 689,397.43 and 273,196.97

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Solution

The fourth proportional to 499,551.47, 689,397.43 and 273,196.97 is: 377,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,551.47 : 689,397.43 = 273,196.97 : x
  2. Step 2: Convert to fraction form
    499,551.47/689,397.43 = 273,196.97/x
  3. Step 3: Cross multiply
    499,551.47x = 689,397.43 × 273,196.97
  4. Step 4: Simplify right side
    499,551.47x = 188,341,287,969.29
  5. Step 5: Solve for x
    x = 188,341,287,969.29/499,551.47
  6. Step 6: Final answer
    x = 377,020.79

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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.