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Finding the Fourth Proportional to 364,562.51, 503,015.64 and 211,512.02

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Solution

The fourth proportional to 364,562.51, 503,015.64 and 211,512.02 is: 291,839.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,562.51 : 503,015.64 = 211,512.02 : x
  2. Step 2: Convert to fraction form
    364,562.51/503,015.64 = 211,512.02/x
  3. Step 3: Cross multiply
    364,562.51x = 503,015.64 × 211,512.02
  4. Step 4: Simplify right side
    364,562.51x = 106,393,854,107.99
  5. Step 5: Solve for x
    x = 106,393,854,107.99/364,562.51
  6. Step 6: Final answer
    x = 291,839.81

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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.