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Finding the Fourth Proportional to 627,528.72, 865,996.36 and 341,048.82

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Solution

The fourth proportional to 627,528.72, 865,996.36 and 341,048.82 is: 470,651.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,528.72 : 865,996.36 = 341,048.82 : x
  2. Step 2: Convert to fraction form
    627,528.72/865,996.36 = 341,048.82/x
  3. Step 3: Cross multiply
    627,528.72x = 865,996.36 × 341,048.82
  4. Step 4: Simplify right side
    627,528.72x = 295,347,036,702.30
  5. Step 5: Solve for x
    x = 295,347,036,702.30/627,528.72
  6. Step 6: Final answer
    x = 470,651.03

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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.