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Finding the Fourth Proportional to 403,364.40, 556,620.84 and 222,069.48

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Solution

The fourth proportional to 403,364.40, 556,620.84 and 222,069.48 is: 306,443.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,364.40 : 556,620.84 = 222,069.48 : x
  2. Step 2: Convert to fraction form
    403,364.40/556,620.84 = 222,069.48/x
  3. Step 3: Cross multiply
    403,364.40x = 556,620.84 × 222,069.48
  4. Step 4: Simplify right side
    403,364.40x = 123,608,500,495.96
  5. Step 5: Solve for x
    x = 123,608,500,495.96/403,364.40
  6. Step 6: Final answer
    x = 306,443.75

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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.