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Finding the Fourth Proportional to 351,874.77, 485,588.22 and 190,730.46

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Solution

The fourth proportional to 351,874.77, 485,588.22 and 190,730.46 is: 263,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,874.77 : 485,588.22 = 190,730.46 : x
  2. Step 2: Convert to fraction form
    351,874.77/485,588.22 = 190,730.46/x
  3. Step 3: Cross multiply
    351,874.77x = 485,588.22 × 190,730.46
  4. Step 4: Simplify right side
    351,874.77x = 92,616,464,571.18
  5. Step 5: Solve for x
    x = 92,616,464,571.18/351,874.77
  6. Step 6: Final answer
    x = 263,208.60

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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.