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Finding the Fourth Proportional to 403,365.80, 556,640.16 and 222,073.90

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Solution

The fourth proportional to 403,365.80, 556,640.16 and 222,073.90 is: 306,459.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,365.80 : 556,640.16 = 222,073.90 : x
  2. Step 2: Convert to fraction form
    403,365.80/556,640.16 = 222,073.90/x
  3. Step 3: Cross multiply
    403,365.80x = 556,640.16 × 222,073.90
  4. Step 4: Simplify right side
    403,365.80x = 123,615,251,227.82
  5. Step 5: Solve for x
    x = 123,615,251,227.82/403,365.80
  6. Step 6: Final answer
    x = 306,459.43

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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.