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Finding the Fourth Proportional to 521,709.33, 782,830.89 and 248,464.89

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Solution

The fourth proportional to 521,709.33, 782,830.89 and 248,464.89 is: 372,824.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,709.33 : 782,830.89 = 248,464.89 : x
  2. Step 2: Convert to fraction form
    521,709.33/782,830.89 = 248,464.89/x
  3. Step 3: Cross multiply
    521,709.33x = 782,830.89 × 248,464.89
  4. Step 4: Simplify right side
    521,709.33x = 194,505,990,972.45
  5. Step 5: Solve for x
    x = 194,505,990,972.45/521,709.33
  6. Step 6: Final answer
    x = 372,824.44

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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.