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Finding the Fourth Proportional to 379,483.57, 569,227.80 and 151,798.21

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Solution

The fourth proportional to 379,483.57, 569,227.80 and 151,798.21 is: 227,698.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,483.57 : 569,227.80 = 151,798.21 : x
  2. Step 2: Convert to fraction form
    379,483.57/569,227.80 = 151,798.21/x
  3. Step 3: Cross multiply
    379,483.57x = 569,227.80 × 151,798.21
  4. Step 4: Simplify right side
    379,483.57x = 86,407,760,268.41
  5. Step 5: Solve for x
    x = 86,407,760,268.41/379,483.57
  6. Step 6: Final answer
    x = 227,698.29

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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.