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Finding the Fourth Proportional to 401,464.25, 554,020.67 and 222,616.25

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Solution

The fourth proportional to 401,464.25, 554,020.67 and 222,616.25 is: 307,210.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,464.25 : 554,020.67 = 222,616.25 : x
  2. Step 2: Convert to fraction form
    401,464.25/554,020.67 = 222,616.25/x
  3. Step 3: Cross multiply
    401,464.25x = 554,020.67 × 222,616.25
  4. Step 4: Simplify right side
    401,464.25x = 123,334,003,977.89
  5. Step 5: Solve for x
    x = 123,334,003,977.89/401,464.25
  6. Step 6: Final answer
    x = 307,210.43

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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.