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Finding the Fourth Proportional to 508,078.98, 701,180.46 and 281,724.48

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Solution

The fourth proportional to 508,078.98, 701,180.46 and 281,724.48 is: 388,797.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,078.98 : 701,180.46 = 281,724.48 : x
  2. Step 2: Convert to fraction form
    508,078.98/701,180.46 = 281,724.48/x
  3. Step 3: Cross multiply
    508,078.98x = 701,180.46 × 281,724.48
  4. Step 4: Simplify right side
    508,078.98x = 197,539,700,479.66
  5. Step 5: Solve for x
    x = 197,539,700,479.66/508,078.98
  6. Step 6: Final answer
    x = 388,797.23

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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.