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Finding the Fourth Proportional to 441,969.11, 609,888.65 and 260,639.48

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Solution

The fourth proportional to 441,969.11, 609,888.65 and 260,639.48 is: 359,665.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,969.11 : 609,888.65 = 260,639.48 : x
  2. Step 2: Convert to fraction form
    441,969.11/609,888.65 = 260,639.48/x
  3. Step 3: Cross multiply
    441,969.11x = 609,888.65 × 260,639.48
  4. Step 4: Simplify right side
    441,969.11x = 158,961,056,241.26
  5. Step 5: Solve for x
    x = 158,961,056,241.26/441,969.11
  6. Step 6: Final answer
    x = 359,665.54

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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.