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Finding the Fourth Proportional to 547,845.55, 821,768.33 and 148,486.32

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Solution

The fourth proportional to 547,845.55, 821,768.33 and 148,486.32 is: 222,729.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,845.55 : 821,768.33 = 148,486.32 : x
  2. Step 2: Convert to fraction form
    547,845.55/821,768.33 = 148,486.32/x
  3. Step 3: Cross multiply
    547,845.55x = 821,768.33 × 148,486.32
  4. Step 4: Simplify right side
    547,845.55x = 122,021,354,471.81
  5. Step 5: Solve for x
    x = 122,021,354,471.81/547,845.55
  6. Step 6: Final answer
    x = 222,729.48

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.