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Finding the Fourth Proportional to 627,034.16, 864,717.72 and 483,566.96

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Solution

The fourth proportional to 627,034.16, 864,717.72 and 483,566.96 is: 666,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,034.16 : 864,717.72 = 483,566.96 : x
  2. Step 2: Convert to fraction form
    627,034.16/864,717.72 = 483,566.96/x
  3. Step 3: Cross multiply
    627,034.16x = 864,717.72 × 483,566.96
  4. Step 4: Simplify right side
    627,034.16x = 418,148,919,118.53
  5. Step 5: Solve for x
    x = 418,148,919,118.53/627,034.16
  6. Step 6: Final answer
    x = 666,867.85

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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.