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Finding the Fourth Proportional to 403,791.80, 606,270.90 and 304,647.80

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Solution

The fourth proportional to 403,791.80, 606,270.90 and 304,647.80 is: 457,411.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,791.80 : 606,270.90 = 304,647.80 : x
  2. Step 2: Convert to fraction form
    403,791.80/606,270.90 = 304,647.80/x
  3. Step 3: Cross multiply
    403,791.80x = 606,270.90 × 304,647.80
  4. Step 4: Simplify right side
    403,791.80x = 184,699,095,889.02
  5. Step 5: Solve for x
    x = 184,699,095,889.02/403,791.80
  6. Step 6: Final answer
    x = 457,411.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.