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Finding the Fourth Proportional to 403,523.78, 556,841.18 and 222,200.30

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Solution

The fourth proportional to 403,523.78, 556,841.18 and 222,200.30 is: 306,624.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,523.78 : 556,841.18 = 222,200.30 : x
  2. Step 2: Convert to fraction form
    403,523.78/556,841.18 = 222,200.30/x
  3. Step 3: Cross multiply
    403,523.78x = 556,841.18 × 222,200.30
  4. Step 4: Simplify right side
    403,523.78x = 123,730,279,195.96
  5. Step 5: Solve for x
    x = 123,730,279,195.96/403,523.78
  6. Step 6: Final answer
    x = 306,624.51

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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.