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Finding the Fourth Proportional to 563,519.70, 777,736.89 and 348,729

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Solution

The fourth proportional to 563,519.70, 777,736.89 and 348,729 is: 481,295.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,519.70 : 777,736.89 = 348,729 : x
  2. Step 2: Convert to fraction form
    563,519.70/777,736.89 = 348,729/x
  3. Step 3: Cross multiply
    563,519.70x = 777,736.89 × 348,729
  4. Step 4: Simplify right side
    563,519.70x = 271,219,407,912.81
  5. Step 5: Solve for x
    x = 271,219,407,912.81/563,519.70
  6. Step 6: Final answer
    x = 481,295.34

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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.