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Finding the Fourth Proportional to 619,181.77, 928,858.74 and 219,727.57

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Solution

The fourth proportional to 619,181.77, 928,858.74 and 219,727.57 is: 329,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,181.77 : 928,858.74 = 219,727.57 : x
  2. Step 2: Convert to fraction form
    619,181.77/928,858.74 = 219,727.57/x
  3. Step 3: Cross multiply
    619,181.77x = 928,858.74 × 219,727.57
  4. Step 4: Simplify right side
    619,181.77x = 204,095,873,813.46
  5. Step 5: Solve for x
    x = 204,095,873,813.46/619,181.77
  6. Step 6: Final answer
    x = 329,621.90

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1.5x scale

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.