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Finding the Fourth Proportional to 570,559.42, 855,922.58 and 171,231.75

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Solution

The fourth proportional to 570,559.42, 855,922.58 and 171,231.75 is: 256,872.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,559.42 : 855,922.58 = 171,231.75 : x
  2. Step 2: Convert to fraction form
    570,559.42/855,922.58 = 171,231.75/x
  3. Step 3: Cross multiply
    570,559.42x = 855,922.58 × 171,231.75
  4. Step 4: Simplify right side
    570,559.42x = 146,561,120,381.76
  5. Step 5: Solve for x
    x = 146,561,120,381.76/570,559.42
  6. Step 6: Final answer
    x = 256,872.67

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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.