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Finding the Fourth Proportional to 393,637.53, 543,293.96 and 246,530.60

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Solution

The fourth proportional to 393,637.53, 543,293.96 and 246,530.60 is: 340,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,637.53 : 543,293.96 = 246,530.60 : x
  2. Step 2: Convert to fraction form
    393,637.53/543,293.96 = 246,530.60/x
  3. Step 3: Cross multiply
    393,637.53x = 543,293.96 × 246,530.60
  4. Step 4: Simplify right side
    393,637.53x = 133,938,581,986.05
  5. Step 5: Solve for x
    x = 133,938,581,986.05/393,637.53
  6. Step 6: Final answer
    x = 340,258.67

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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.