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Finding the Fourth Proportional to 474,786.10, 655,100.07 and 281,097.64

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Solution

The fourth proportional to 474,786.10, 655,100.07 and 281,097.64 is: 387,852.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,786.10 : 655,100.07 = 281,097.64 : x
  2. Step 2: Convert to fraction form
    474,786.10/655,100.07 = 281,097.64/x
  3. Step 3: Cross multiply
    474,786.10x = 655,100.07 × 281,097.64
  4. Step 4: Simplify right side
    474,786.10x = 184,147,083,640.84
  5. Step 5: Solve for x
    x = 184,147,083,640.84/474,786.10
  6. Step 6: Final answer
    x = 387,852.73

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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.