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Finding the Fourth Proportional to 525,245.52, 788,066.88 and 205,625.88

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Solution

The fourth proportional to 525,245.52, 788,066.88 and 205,625.88 is: 308,516.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,245.52 : 788,066.88 = 205,625.88 : x
  2. Step 2: Convert to fraction form
    525,245.52/788,066.88 = 205,625.88/x
  3. Step 3: Cross multiply
    525,245.52x = 788,066.88 × 205,625.88
  4. Step 4: Simplify right side
    525,245.52x = 162,046,945,698.85
  5. Step 5: Solve for x
    x = 162,046,945,698.85/525,245.52
  6. Step 6: Final answer
    x = 308,516.57

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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.