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Finding the Fourth Proportional to 551,427.78, 827,307.78 and 196,395.60

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Solution

The fourth proportional to 551,427.78, 827,307.78 and 196,395.60 is: 294,652.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,427.78 : 827,307.78 = 196,395.60 : x
  2. Step 2: Convert to fraction form
    551,427.78/827,307.78 = 196,395.60/x
  3. Step 3: Cross multiply
    551,427.78x = 827,307.78 × 196,395.60
  4. Step 4: Simplify right side
    551,427.78x = 162,479,607,837.77
  5. Step 5: Solve for x
    x = 162,479,607,837.77/551,427.78
  6. Step 6: Final answer
    x = 294,652.56

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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.