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Finding the Fourth Proportional to 455,374.40, 682,805.60 and 174,900.80

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Solution

The fourth proportional to 455,374.40, 682,805.60 and 174,900.80 is: 262,252.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,374.40 : 682,805.60 = 174,900.80 : x
  2. Step 2: Convert to fraction form
    455,374.40/682,805.60 = 174,900.80/x
  3. Step 3: Cross multiply
    455,374.40x = 682,805.60 × 174,900.80
  4. Step 4: Simplify right side
    455,374.40x = 119,423,245,684.48
  5. Step 5: Solve for x
    x = 119,423,245,684.48/455,374.40
  6. Step 6: Final answer
    x = 262,252.88

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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.