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Finding the Fourth Proportional to 449,373.24, 620,138.70 and 248,169.24

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Solution

The fourth proportional to 449,373.24, 620,138.70 and 248,169.24 is: 342,475.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,373.24 : 620,138.70 = 248,169.24 : x
  2. Step 2: Convert to fraction form
    449,373.24/620,138.70 = 248,169.24/x
  3. Step 3: Cross multiply
    449,373.24x = 620,138.70 × 248,169.24
  4. Step 4: Simplify right side
    449,373.24x = 153,899,349,873.59
  5. Step 5: Solve for x
    x = 153,899,349,873.59/449,373.24
  6. Step 6: Final answer
    x = 342,475.56

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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.