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Finding the Fourth Proportional to 297,416.40, 444,828.60 and 266,053.20

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Solution

The fourth proportional to 297,416.40, 444,828.60 and 266,053.20 is: 397,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,416.40 : 444,828.60 = 266,053.20 : x
  2. Step 2: Convert to fraction form
    297,416.40/444,828.60 = 266,053.20/x
  3. Step 3: Cross multiply
    297,416.40x = 444,828.60 × 266,053.20
  4. Step 4: Simplify right side
    297,416.40x = 118,348,072,481.52
  5. Step 5: Solve for x
    x = 118,348,072,481.52/297,416.40
  6. Step 6: Final answer
    x = 397,920.47

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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.