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Finding the Fourth Proportional to 300,813.89, 415,083.65 and 179,911.06

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Solution

The fourth proportional to 300,813.89, 415,083.65 and 179,911.06 is: 248,253.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,813.89 : 415,083.65 = 179,911.06 : x
  2. Step 2: Convert to fraction form
    300,813.89/415,083.65 = 179,911.06/x
  3. Step 3: Cross multiply
    300,813.89x = 415,083.65 × 179,911.06
  4. Step 4: Simplify right side
    300,813.89x = 74,678,137,522.90
  5. Step 5: Solve for x
    x = 74,678,137,522.90/300,813.89
  6. Step 6: Final answer
    x = 248,253.63

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1.5x scale

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.