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Finding the Fourth Proportional to 437,221.78, 655,832.67 and 170,795.46

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Solution

The fourth proportional to 437,221.78, 655,832.67 and 170,795.46 is: 256,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,221.78 : 655,832.67 = 170,795.46 : x
  2. Step 2: Convert to fraction form
    437,221.78/655,832.67 = 170,795.46/x
  3. Step 3: Cross multiply
    437,221.78x = 655,832.67 × 170,795.46
  4. Step 4: Simplify right side
    437,221.78x = 112,013,243,971.13
  5. Step 5: Solve for x
    x = 112,013,243,971.13/437,221.78
  6. Step 6: Final answer
    x = 256,193.19

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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.