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Finding the Fourth Proportional to 585,368.20, 878,039.80 and 269,825.11

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Solution

The fourth proportional to 585,368.20, 878,039.80 and 269,825.11 is: 404,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,368.20 : 878,039.80 = 269,825.11 : x
  2. Step 2: Convert to fraction form
    585,368.20/878,039.80 = 269,825.11/x
  3. Step 3: Cross multiply
    585,368.20x = 878,039.80 × 269,825.11
  4. Step 4: Simplify right side
    585,368.20x = 236,917,182,749.72
  5. Step 5: Solve for x
    x = 236,917,182,749.72/585,368.20
  6. Step 6: Final answer
    x = 404,731.90

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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.