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Finding the Fourth Proportional to 292,469.72, 438,879.36 and 268,675.16

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Solution

The fourth proportional to 292,469.72, 438,879.36 and 268,675.16 is: 403,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,469.72 : 438,879.36 = 268,675.16 : x
  2. Step 2: Convert to fraction form
    292,469.72/438,879.36 = 268,675.16/x
  3. Step 3: Cross multiply
    292,469.72x = 438,879.36 × 268,675.16
  4. Step 4: Simplify right side
    292,469.72x = 117,915,982,268.70
  5. Step 5: Solve for x
    x = 117,915,982,268.70/292,469.72
  6. Step 6: Final answer
    x = 403,173.30

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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.