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Finding the Fourth Proportional to 364,745.16, 503,346.40 and 211,820.96

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Solution

The fourth proportional to 364,745.16, 503,346.40 and 211,820.96 is: 292,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,745.16 : 503,346.40 = 211,820.96 : x
  2. Step 2: Convert to fraction form
    364,745.16/503,346.40 = 211,820.96/x
  3. Step 3: Cross multiply
    364,745.16x = 503,346.40 × 211,820.96
  4. Step 4: Simplify right side
    364,745.16x = 106,619,317,660.54
  5. Step 5: Solve for x
    x = 106,619,317,660.54/364,745.16
  6. Step 6: Final answer
    x = 292,311.81

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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.