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Finding the Fourth Proportional to 383,533.96, 529,279.32 and 213,778.84

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Solution

The fourth proportional to 383,533.96, 529,279.32 and 213,778.84 is: 295,016.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,533.96 : 529,279.32 = 213,778.84 : x
  2. Step 2: Convert to fraction form
    383,533.96/529,279.32 = 213,778.84/x
  3. Step 3: Cross multiply
    383,533.96x = 529,279.32 × 213,778.84
  4. Step 4: Simplify right side
    383,533.96x = 113,148,719,065.59
  5. Step 5: Solve for x
    x = 113,148,719,065.59/383,533.96
  6. Step 6: Final answer
    x = 295,016.17

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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.