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Finding the Fourth Proportional to 416,243.96, 574,442.62 and 234,986.60

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Solution

The fourth proportional to 416,243.96, 574,442.62 and 234,986.60 is: 324,296.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,243.96 : 574,442.62 = 234,986.60 : x
  2. Step 2: Convert to fraction form
    416,243.96/574,442.62 = 234,986.60/x
  3. Step 3: Cross multiply
    416,243.96x = 574,442.62 × 234,986.60
  4. Step 4: Simplify right side
    416,243.96x = 134,986,318,168.89
  5. Step 5: Solve for x
    x = 134,986,318,168.89/416,243.96
  6. Step 6: Final answer
    x = 324,296.16

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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.