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Finding the Fourth Proportional to 376,365.75, 519,148.53 and 223,295.60

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Solution

The fourth proportional to 376,365.75, 519,148.53 and 223,295.60 is: 308,007.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,365.75 : 519,148.53 = 223,295.60 : x
  2. Step 2: Convert to fraction form
    376,365.75/519,148.53 = 223,295.60/x
  3. Step 3: Cross multiply
    376,365.75x = 519,148.53 × 223,295.60
  4. Step 4: Simplify right side
    376,365.75x = 115,923,579,899.73
  5. Step 5: Solve for x
    x = 115,923,579,899.73/376,365.75
  6. Step 6: Final answer
    x = 308,007.78

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1.5x scale

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.