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Finding the Fourth Proportional to 283,578.08, 391,334.60 and 161,069.60

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Solution

The fourth proportional to 283,578.08, 391,334.60 and 161,069.60 is: 222,274.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,578.08 : 391,334.60 = 161,069.60 : x
  2. Step 2: Convert to fraction form
    283,578.08/391,334.60 = 161,069.60/x
  3. Step 3: Cross multiply
    283,578.08x = 391,334.60 × 161,069.60
  4. Step 4: Simplify right side
    283,578.08x = 63,032,107,488.16
  5. Step 5: Solve for x
    x = 63,032,107,488.16/283,578.08
  6. Step 6: Final answer
    x = 222,274.26

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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.