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Finding the Fourth Proportional to 508,464.52, 701,679.10 and 279,025.60

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Solution

The fourth proportional to 508,464.52, 701,679.10 and 279,025.60 is: 385,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,464.52 : 701,679.10 = 279,025.60 : x
  2. Step 2: Convert to fraction form
    508,464.52/701,679.10 = 279,025.60/x
  3. Step 3: Cross multiply
    508,464.52x = 701,679.10 × 279,025.60
  4. Step 4: Simplify right side
    508,464.52x = 195,786,431,884.96
  5. Step 5: Solve for x
    x = 195,786,431,884.96/508,464.52
  6. Step 6: Final answer
    x = 385,054.26

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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.