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Finding the Fourth Proportional to 392,616.96, 541,267.20 and 265,090.56

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Solution

The fourth proportional to 392,616.96, 541,267.20 and 265,090.56 is: 365,457.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,616.96 : 541,267.20 = 265,090.56 : x
  2. Step 2: Convert to fraction form
    392,616.96/541,267.20 = 265,090.56/x
  3. Step 3: Cross multiply
    392,616.96x = 541,267.20 × 265,090.56
  4. Step 4: Simplify right side
    392,616.96x = 143,484,825,157.63
  5. Step 5: Solve for x
    x = 143,484,825,157.63/392,616.96
  6. Step 6: Final answer
    x = 365,457.53

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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.