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Finding the Fourth Proportional to 582,040.40, 873,060.60 and 395,416.40

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Solution

The fourth proportional to 582,040.40, 873,060.60 and 395,416.40 is: 593,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,040.40 : 873,060.60 = 395,416.40 : x
  2. Step 2: Convert to fraction form
    582,040.40/873,060.60 = 395,416.40/x
  3. Step 3: Cross multiply
    582,040.40x = 873,060.60 × 395,416.40
  4. Step 4: Simplify right side
    582,040.40x = 345,222,479,433.84
  5. Step 5: Solve for x
    x = 345,222,479,433.84/582,040.40
  6. Step 6: Final answer
    x = 593,124.60

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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.