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Finding the Fourth Proportional to 483,686.88, 667,510.44 and 268,830.48

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Solution

The fourth proportional to 483,686.88, 667,510.44 and 268,830.48 is: 370,998.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,686.88 : 667,510.44 = 268,830.48 : x
  2. Step 2: Convert to fraction form
    483,686.88/667,510.44 = 268,830.48/x
  3. Step 3: Cross multiply
    483,686.88x = 667,510.44 × 268,830.48
  4. Step 4: Simplify right side
    483,686.88x = 179,447,151,990.21
  5. Step 5: Solve for x
    x = 179,447,151,990.21/483,686.88
  6. Step 6: Final answer
    x = 370,998.59

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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.