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Finding the Fourth Proportional to 364,648.64, 503,131.48 and 219,415.43

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Solution

The fourth proportional to 364,648.64, 503,131.48 and 219,415.43 is: 302,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,648.64 : 503,131.48 = 219,415.43 : x
  2. Step 2: Convert to fraction form
    364,648.64/503,131.48 = 219,415.43/x
  3. Step 3: Cross multiply
    364,648.64x = 503,131.48 × 219,415.43
  4. Step 4: Simplify right side
    364,648.64x = 110,394,810,740.03
  5. Step 5: Solve for x
    x = 110,394,810,740.03/364,648.64
  6. Step 6: Final answer
    x = 302,742.97

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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.