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Finding the Fourth Proportional to 383,197.97, 528,813.34 and 222,146.37

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Solution

The fourth proportional to 383,197.97, 528,813.34 and 222,146.37 is: 306,562.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,197.97 : 528,813.34 = 222,146.37 : x
  2. Step 2: Convert to fraction form
    383,197.97/528,813.34 = 222,146.37/x
  3. Step 3: Cross multiply
    383,197.97x = 528,813.34 × 222,146.37
  4. Step 4: Simplify right side
    383,197.97x = 117,473,965,316.26
  5. Step 5: Solve for x
    x = 117,473,965,316.26/383,197.97
  6. Step 6: Final answer
    x = 306,562.08

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1.5x scale

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.