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Finding the Fourth Proportional to 401,344.42, 553,880.19 and 222,496.42

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Solution

The fourth proportional to 401,344.42, 553,880.19 and 222,496.42 is: 307,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,344.42 : 553,880.19 = 222,496.42 : x
  2. Step 2: Convert to fraction form
    401,344.42/553,880.19 = 222,496.42/x
  3. Step 3: Cross multiply
    401,344.42x = 553,880.19 × 222,496.42
  4. Step 4: Simplify right side
    401,344.42x = 123,236,359,383.92
  5. Step 5: Solve for x
    x = 123,236,359,383.92/401,344.42
  6. Step 6: Final answer
    x = 307,058.86

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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.