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Finding the Fourth Proportional to 357,779.70, 493,745.04 and 196,638.84

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Solution

The fourth proportional to 357,779.70, 493,745.04 and 196,638.84 is: 271,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,779.70 : 493,745.04 = 196,638.84 : x
  2. Step 2: Convert to fraction form
    357,779.70/493,745.04 = 196,638.84/x
  3. Step 3: Cross multiply
    357,779.70x = 493,745.04 × 196,638.84
  4. Step 4: Simplify right side
    357,779.70x = 97,089,451,921.35
  5. Step 5: Solve for x
    x = 97,089,451,921.35/357,779.70
  6. Step 6: Final answer
    x = 271,366.58

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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.