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Finding the Fourth Proportional to 383,530.68, 529,250.76 and 211,442.94

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Solution

The fourth proportional to 383,530.68, 529,250.76 and 211,442.94 is: 291,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,530.68 : 529,250.76 = 211,442.94 : x
  2. Step 2: Convert to fraction form
    383,530.68/529,250.76 = 211,442.94/x
  3. Step 3: Cross multiply
    383,530.68x = 529,250.76 × 211,442.94
  4. Step 4: Simplify right side
    383,530.68x = 111,906,336,691.63
  5. Step 5: Solve for x
    x = 111,906,336,691.63/383,530.68
  6. Step 6: Final answer
    x = 291,779.36

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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.