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Finding the Fourth Proportional to 383,416.01, 529,144.61 and 211,364.58

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Solution

The fourth proportional to 383,416.01, 529,144.61 and 211,364.58 is: 291,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,416.01 : 529,144.61 = 211,364.58 : x
  2. Step 2: Convert to fraction form
    383,416.01/529,144.61 = 211,364.58/x
  3. Step 3: Cross multiply
    383,416.01x = 529,144.61 × 211,364.58
  4. Step 4: Simplify right side
    383,416.01x = 111,842,429,179.38
  5. Step 5: Solve for x
    x = 111,842,429,179.38/383,416.01
  6. Step 6: Final answer
    x = 291,699.95

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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.