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Finding the Fourth Proportional to 547,698.93, 755,824.44 and 305,981.58

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Solution

The fourth proportional to 547,698.93, 755,824.44 and 305,981.58 is: 422,254.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,698.93 : 755,824.44 = 305,981.58 : x
  2. Step 2: Convert to fraction form
    547,698.93/755,824.44 = 305,981.58/x
  3. Step 3: Cross multiply
    547,698.93x = 755,824.44 × 305,981.58
  4. Step 4: Simplify right side
    547,698.93x = 231,268,356,353.82
  5. Step 5: Solve for x
    x = 231,268,356,353.82/547,698.93
  6. Step 6: Final answer
    x = 422,254.53

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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.