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Finding the Fourth Proportional to 582,087.32, 873,131.21 and 261,865.16

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Solution

The fourth proportional to 582,087.32, 873,131.21 and 261,865.16 is: 392,797.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,087.32 : 873,131.21 = 261,865.16 : x
  2. Step 2: Convert to fraction form
    582,087.32/873,131.21 = 261,865.16/x
  3. Step 3: Cross multiply
    582,087.32x = 873,131.21 × 261,865.16
  4. Step 4: Simplify right side
    582,087.32x = 228,642,644,007.64
  5. Step 5: Solve for x
    x = 228,642,644,007.64/582,087.32
  6. Step 6: Final answer
    x = 392,797.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.