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Finding the Fourth Proportional to 483,318.30, 666,989.82 and 265,529.78

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Solution

The fourth proportional to 483,318.30, 666,989.82 and 265,529.78 is: 366,436.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,318.30 : 666,989.82 = 265,529.78 : x
  2. Step 2: Convert to fraction form
    483,318.30/666,989.82 = 265,529.78/x
  3. Step 3: Cross multiply
    483,318.30x = 666,989.82 × 265,529.78
  4. Step 4: Simplify right side
    483,318.30x = 177,105,660,166.84
  5. Step 5: Solve for x
    x = 177,105,660,166.84/483,318.30
  6. Step 6: Final answer
    x = 366,436.90

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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.