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Finding the Fourth Proportional to 403,331, 556,609.74 and 222,033.56

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Solution

The fourth proportional to 403,331, 556,609.74 and 222,033.56 is: 306,413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,331 : 556,609.74 = 222,033.56 : x
  2. Step 2: Convert to fraction form
    403,331/556,609.74 = 222,033.56/x
  3. Step 3: Cross multiply
    403,331x = 556,609.74 × 222,033.56
  4. Step 4: Simplify right side
    403,331x = 123,586,042,102.87
  5. Step 5: Solve for x
    x = 123,586,042,102.87/403,331
  6. Step 6: Final answer
    x = 306,413.45

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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.