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Finding the Fourth Proportional to 397,303.53, 547,915.64 and 295,583.73

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Solution

The fourth proportional to 397,303.53, 547,915.64 and 295,583.73 is: 407,635.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,303.53 : 547,915.64 = 295,583.73 : x
  2. Step 2: Convert to fraction form
    397,303.53/547,915.64 = 295,583.73/x
  3. Step 3: Cross multiply
    397,303.53x = 547,915.64 × 295,583.73
  4. Step 4: Simplify right side
    397,303.53x = 161,954,947,118.62
  5. Step 5: Solve for x
    x = 161,954,947,118.62/397,303.53
  6. Step 6: Final answer
    x = 407,635.31

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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.