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Finding the Fourth Proportional to 479,939.43, 662,312.48 and 262,148.25

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Solution

The fourth proportional to 479,939.43, 662,312.48 and 262,148.25 is: 361,762.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,939.43 : 662,312.48 = 262,148.25 : x
  2. Step 2: Convert to fraction form
    479,939.43/662,312.48 = 262,148.25/x
  3. Step 3: Cross multiply
    479,939.43x = 662,312.48 × 262,148.25
  4. Step 4: Simplify right side
    479,939.43x = 173,624,054,273.60
  5. Step 5: Solve for x
    x = 173,624,054,273.60/479,939.43
  6. Step 6: Final answer
    x = 361,762.43

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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.