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Finding the Fourth Proportional to 298,823.40, 448,479.90 and 296,490.60

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Solution

The fourth proportional to 298,823.40, 448,479.90 and 296,490.60 is: 444,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,823.40 : 448,479.90 = 296,490.60 : x
  2. Step 2: Convert to fraction form
    298,823.40/448,479.90 = 296,490.60/x
  3. Step 3: Cross multiply
    298,823.40x = 448,479.90 × 296,490.60
  4. Step 4: Simplify right side
    298,823.40x = 132,970,074,638.94
  5. Step 5: Solve for x
    x = 132,970,074,638.94/298,823.40
  6. Step 6: Final answer
    x = 444,978.79

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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.