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Finding the Fourth Proportional to 483,290.48, 666,963.12 and 268,431.44

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Solution

The fourth proportional to 483,290.48, 666,963.12 and 268,431.44 is: 370,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,290.48 : 666,963.12 = 268,431.44 : x
  2. Step 2: Convert to fraction form
    483,290.48/666,963.12 = 268,431.44/x
  3. Step 3: Cross multiply
    483,290.48x = 666,963.12 × 268,431.44
  4. Step 4: Simplify right side
    483,290.48x = 179,033,870,728.49
  5. Step 5: Solve for x
    x = 179,033,870,728.49/483,290.48
  6. Step 6: Final answer
    x = 370,447.75

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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.