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Finding the Fourth Proportional to 291,889.63, 436,981.38 and 263,874.16

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Solution

The fourth proportional to 291,889.63, 436,981.38 and 263,874.16 is: 395,040.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,889.63 : 436,981.38 = 263,874.16 : x
  2. Step 2: Convert to fraction form
    291,889.63/436,981.38 = 263,874.16/x
  3. Step 3: Cross multiply
    291,889.63x = 436,981.38 × 263,874.16
  4. Step 4: Simplify right side
    291,889.63x = 115,308,094,583.14
  5. Step 5: Solve for x
    x = 115,308,094,583.14/291,889.63
  6. Step 6: Final answer
    x = 395,040.05

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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.