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Finding the Fourth Proportional to 556,261.40, 834,027.60 and 219,098.90

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Solution

The fourth proportional to 556,261.40, 834,027.60 and 219,098.90 is: 328,504.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,261.40 : 834,027.60 = 219,098.90 : x
  2. Step 2: Convert to fraction form
    556,261.40/834,027.60 = 219,098.90/x
  3. Step 3: Cross multiply
    556,261.40x = 834,027.60 × 219,098.90
  4. Step 4: Simplify right side
    556,261.40x = 182,734,529,729.64
  5. Step 5: Solve for x
    x = 182,734,529,729.64/556,261.40
  6. Step 6: Final answer
    x = 328,504.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.