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Finding the Fourth Proportional to 275,415.68, 380,113.44 and 152,936.48

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Solution

The fourth proportional to 275,415.68, 380,113.44 and 152,936.48 is: 211,074.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,415.68 : 380,113.44 = 152,936.48 : x
  2. Step 2: Convert to fraction form
    275,415.68/380,113.44 = 152,936.48/x
  3. Step 3: Cross multiply
    275,415.68x = 380,113.44 × 152,936.48
  4. Step 4: Simplify right side
    275,415.68x = 58,133,211,514.29
  5. Step 5: Solve for x
    x = 58,133,211,514.29/275,415.68
  6. Step 6: Final answer
    x = 211,074.44

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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.