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Finding the Fourth Proportional to 627,039.16, 864,724.62 and 483,571.96

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Solution

The fourth proportional to 627,039.16, 864,724.62 and 483,571.96 is: 666,874.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,039.16 : 864,724.62 = 483,571.96 : x
  2. Step 2: Convert to fraction form
    627,039.16/864,724.62 = 483,571.96/x
  3. Step 3: Cross multiply
    627,039.16x = 864,724.62 × 483,571.96
  4. Step 4: Simplify right side
    627,039.16x = 418,156,579,353.66
  5. Step 5: Solve for x
    x = 418,156,579,353.66/627,039.16
  6. Step 6: Final answer
    x = 666,874.74

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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.