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Finding the Fourth Proportional to 368,376.41, 508,085.43 and 325,279.87

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Solution

The fourth proportional to 368,376.41, 508,085.43 and 325,279.87 is: 448,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,376.41 : 508,085.43 = 325,279.87 : x
  2. Step 2: Convert to fraction form
    368,376.41/508,085.43 = 325,279.87/x
  3. Step 3: Cross multiply
    368,376.41x = 508,085.43 × 325,279.87
  4. Step 4: Simplify right side
    368,376.41x = 165,269,961,081.94
  5. Step 5: Solve for x
    x = 165,269,961,081.94/368,376.41
  6. Step 6: Final answer
    x = 448,644.25

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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.