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Finding the Fourth Proportional to 401,640.24, 554,263.80 and 222,792.24

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Solution

The fourth proportional to 401,640.24, 554,263.80 and 222,792.24 is: 307,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,640.24 : 554,263.80 = 222,792.24 : x
  2. Step 2: Convert to fraction form
    401,640.24/554,263.80 = 222,792.24/x
  3. Step 3: Cross multiply
    401,640.24x = 554,263.80 × 222,792.24
  4. Step 4: Simplify right side
    401,640.24x = 123,485,673,552.91
  5. Step 5: Solve for x
    x = 123,485,673,552.91/401,640.24
  6. Step 6: Final answer
    x = 307,453.44

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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.