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Finding the Fourth Proportional to 723,796.88, 999,357.36 and 482,648

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Solution

The fourth proportional to 723,796.88, 999,357.36 and 482,648 is: 666,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,796.88 : 999,357.36 = 482,648 : x
  2. Step 2: Convert to fraction form
    723,796.88/999,357.36 = 482,648/x
  3. Step 3: Cross multiply
    723,796.88x = 999,357.36 × 482,648
  4. Step 4: Simplify right side
    723,796.88x = 482,337,831,089.28
  5. Step 5: Solve for x
    x = 482,337,831,089.28/723,796.88
  6. Step 6: Final answer
    x = 666,399.43

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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.