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Finding the Fourth Proportional to 436,944.54, 655,416.56 and 121,401.32

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Solution

The fourth proportional to 436,944.54, 655,416.56 and 121,401.32 is: 182,101.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,944.54 : 655,416.56 = 121,401.32 : x
  2. Step 2: Convert to fraction form
    436,944.54/655,416.56 = 121,401.32/x
  3. Step 3: Cross multiply
    436,944.54x = 655,416.56 × 121,401.32
  4. Step 4: Simplify right side
    436,944.54x = 79,568,435,533.86
  5. Step 5: Solve for x
    x = 79,568,435,533.86/436,944.54
  6. Step 6: Final answer
    x = 182,101.91

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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.