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Finding the Fourth Proportional to 364,887.80, 503,464.20 and 211,837.88

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Solution

The fourth proportional to 364,887.80, 503,464.20 and 211,837.88 is: 292,289.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,887.80 : 503,464.20 = 211,837.88 : x
  2. Step 2: Convert to fraction form
    364,887.80/503,464.20 = 211,837.88/x
  3. Step 3: Cross multiply
    364,887.80x = 503,464.20 × 211,837.88
  4. Step 4: Simplify right side
    364,887.80x = 106,652,788,783.90
  5. Step 5: Solve for x
    x = 106,652,788,783.90/364,887.80
  6. Step 6: Final answer
    x = 292,289.27

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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.