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Finding the Fourth Proportional to 383,999.54, 529,919.70 and 214,233.72

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Solution

The fourth proportional to 383,999.54, 529,919.70 and 214,233.72 is: 295,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,999.54 : 529,919.70 = 214,233.72 : x
  2. Step 2: Convert to fraction form
    383,999.54/529,919.70 = 214,233.72/x
  3. Step 3: Cross multiply
    383,999.54x = 529,919.70 × 214,233.72
  4. Step 4: Simplify right side
    383,999.54x = 113,526,668,632.28
  5. Step 5: Solve for x
    x = 113,526,668,632.28/383,999.54
  6. Step 6: Final answer
    x = 295,642.72

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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.