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Finding the Fourth Proportional to 383,894.18, 529,770.46 and 211,813.73

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Solution

The fourth proportional to 383,894.18, 529,770.46 and 211,813.73 is: 292,301.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,894.18 : 529,770.46 = 211,813.73 : x
  2. Step 2: Convert to fraction form
    383,894.18/529,770.46 = 211,813.73/x
  3. Step 3: Cross multiply
    383,894.18x = 529,770.46 × 211,813.73
  4. Step 4: Simplify right side
    383,894.18x = 112,212,656,117.35
  5. Step 5: Solve for x
    x = 112,212,656,117.35/383,894.18
  6. Step 6: Final answer
    x = 292,301.01

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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.