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Finding the Fourth Proportional to 468,268.59, 646,212.26 and 253,408.60

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Solution

The fourth proportional to 468,268.59, 646,212.26 and 253,408.60 is: 349,704.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,268.59 : 646,212.26 = 253,408.60 : x
  2. Step 2: Convert to fraction form
    468,268.59/646,212.26 = 253,408.60/x
  3. Step 3: Cross multiply
    468,268.59x = 646,212.26 × 253,408.60
  4. Step 4: Simplify right side
    468,268.59x = 163,755,743,127.43
  5. Step 5: Solve for x
    x = 163,755,743,127.43/468,268.59
  6. Step 6: Final answer
    x = 349,704.73

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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.