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Finding the Fourth Proportional to 461,256.80, 691,885.20 and 367,944.80

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Solution

The fourth proportional to 461,256.80, 691,885.20 and 367,944.80 is: 551,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,256.80 : 691,885.20 = 367,944.80 : x
  2. Step 2: Convert to fraction form
    461,256.80/691,885.20 = 367,944.80/x
  3. Step 3: Cross multiply
    461,256.80x = 691,885.20 × 367,944.80
  4. Step 4: Simplify right side
    461,256.80x = 254,575,561,536.96
  5. Step 5: Solve for x
    x = 254,575,561,536.96/461,256.80
  6. Step 6: Final answer
    x = 551,917.20

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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.