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Finding the Fourth Proportional to 483,078.98, 666,636.31 and 268,213.52

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Solution

The fourth proportional to 483,078.98, 666,636.31 and 268,213.52 is: 370,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,078.98 : 666,636.31 = 268,213.52 : x
  2. Step 2: Convert to fraction form
    483,078.98/666,636.31 = 268,213.52/x
  3. Step 3: Cross multiply
    483,078.98x = 666,636.31 × 268,213.52
  4. Step 4: Simplify right side
    483,078.98x = 178,800,873,266.77
  5. Step 5: Solve for x
    x = 178,800,873,266.77/483,078.98
  6. Step 6: Final answer
    x = 370,127.62

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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.