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Finding the Fourth Proportional to 481,603.93, 664,618.32 and 290,580.41

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Solution

The fourth proportional to 481,603.93, 664,618.32 and 290,580.41 is: 401,003.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,603.93 : 664,618.32 = 290,580.41 : x
  2. Step 2: Convert to fraction form
    481,603.93/664,618.32 = 290,580.41/x
  3. Step 3: Cross multiply
    481,603.93x = 664,618.32 × 290,580.41
  4. Step 4: Simplify right side
    481,603.93x = 193,125,065,580.66
  5. Step 5: Solve for x
    x = 193,125,065,580.66/481,603.93
  6. Step 6: Final answer
    x = 401,003.93

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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.