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Finding the Fourth Proportional to 483,161.85, 666,780.53 and 268,305.57

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Solution

The fourth proportional to 483,161.85, 666,780.53 and 268,305.57 is: 370,271.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,161.85 : 666,780.53 = 268,305.57 : x
  2. Step 2: Convert to fraction form
    483,161.85/666,780.53 = 268,305.57/x
  3. Step 3: Cross multiply
    483,161.85x = 666,780.53 × 268,305.57
  4. Step 4: Simplify right side
    483,161.85x = 178,900,928,825.02
  5. Step 5: Solve for x
    x = 178,900,928,825.02/483,161.85
  6. Step 6: Final answer
    x = 370,271.22

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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.