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Finding the Fourth Proportional to 451,090.60, 622,571.34 and 260,066.68

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Solution

The fourth proportional to 451,090.60, 622,571.34 and 260,066.68 is: 358,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,090.60 : 622,571.34 = 260,066.68 : x
  2. Step 2: Convert to fraction form
    451,090.60/622,571.34 = 260,066.68/x
  3. Step 3: Cross multiply
    451,090.60x = 622,571.34 × 260,066.68
  4. Step 4: Simplify right side
    451,090.60x = 161,910,061,456.95
  5. Step 5: Solve for x
    x = 161,910,061,456.95/451,090.60
  6. Step 6: Final answer
    x = 358,930.25

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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.