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Finding the Fourth Proportional to 436,764.80, 655,492.80 and 170,652.80

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Solution

The fourth proportional to 436,764.80, 655,492.80 and 170,652.80 is: 256,114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,764.80 : 655,492.80 = 170,652.80 : x
  2. Step 2: Convert to fraction form
    436,764.80/655,492.80 = 170,652.80/x
  3. Step 3: Cross multiply
    436,764.80x = 655,492.80 × 170,652.80
  4. Step 4: Simplify right side
    436,764.80x = 111,861,681,699.84
  5. Step 5: Solve for x
    x = 111,861,681,699.84/436,764.80
  6. Step 6: Final answer
    x = 256,114.23

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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.