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Finding the Fourth Proportional to 544,722.78, 817,215.42 and 170,745.78

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Solution

The fourth proportional to 544,722.78, 817,215.42 and 170,745.78 is: 256,159.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,722.78 : 817,215.42 = 170,745.78 : x
  2. Step 2: Convert to fraction form
    544,722.78/817,215.42 = 170,745.78/x
  3. Step 3: Cross multiply
    544,722.78x = 817,215.42 × 170,745.78
  4. Step 4: Simplify right side
    544,722.78x = 139,536,084,315.93
  5. Step 5: Solve for x
    x = 139,536,084,315.93/544,722.78
  6. Step 6: Final answer
    x = 256,159.81

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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.