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Finding the Fourth Proportional to 436,793.04, 655,071.48 and 187,416.72

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Solution

The fourth proportional to 436,793.04, 655,071.48 and 187,416.72 is: 281,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,793.04 : 655,071.48 = 187,416.72 : x
  2. Step 2: Convert to fraction form
    436,793.04/655,071.48 = 187,416.72/x
  3. Step 3: Cross multiply
    436,793.04x = 655,071.48 × 187,416.72
  4. Step 4: Simplify right side
    436,793.04x = 122,771,348,147.15
  5. Step 5: Solve for x
    x = 122,771,348,147.15/436,793.04
  6. Step 6: Final answer
    x = 281,074.41

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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.