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Finding the Fourth Proportional to 627,485.67, 865,935.70 and 341,005.73

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Solution

The fourth proportional to 627,485.67, 865,935.70 and 341,005.73 is: 470,590.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,485.67 : 865,935.70 = 341,005.73 : x
  2. Step 2: Convert to fraction form
    627,485.67/865,935.70 = 341,005.73/x
  3. Step 3: Cross multiply
    627,485.67x = 865,935.70 × 341,005.73
  4. Step 4: Simplify right side
    627,485.67x = 295,289,030,329.37
  5. Step 5: Solve for x
    x = 295,289,030,329.37/627,485.67
  6. Step 6: Final answer
    x = 470,590.87

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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.