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Finding the Fourth Proportional to 706,255.36, 974,651.68 and 383,987.12

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Solution

The fourth proportional to 706,255.36, 974,651.68 and 383,987.12 is: 529,912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,255.36 : 974,651.68 = 383,987.12 : x
  2. Step 2: Convert to fraction form
    706,255.36/974,651.68 = 383,987.12/x
  3. Step 3: Cross multiply
    706,255.36x = 974,651.68 × 383,987.12
  4. Step 4: Simplify right side
    706,255.36x = 374,253,691,606.36
  5. Step 5: Solve for x
    x = 374,253,691,606.36/706,255.36
  6. Step 6: Final answer
    x = 529,912.71

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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.