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Finding the Fourth Proportional to 412,307.55, 618,073.38 and 222,483.42

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Solution

The fourth proportional to 412,307.55, 618,073.38 and 222,483.42 is: 333,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,307.55 : 618,073.38 = 222,483.42 : x
  2. Step 2: Convert to fraction form
    412,307.55/618,073.38 = 222,483.42/x
  3. Step 3: Cross multiply
    412,307.55x = 618,073.38 × 222,483.42
  4. Step 4: Simplify right side
    412,307.55x = 137,511,079,393.36
  5. Step 5: Solve for x
    x = 137,511,079,393.36/412,307.55
  6. Step 6: Final answer
    x = 333,515.79

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1.5x scale

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.