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Finding the Fourth Proportional to 582,912.72, 874,018.68 and 395,355.60

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Solution

The fourth proportional to 582,912.72, 874,018.68 and 395,355.60 is: 592,795.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,912.72 : 874,018.68 = 395,355.60 : x
  2. Step 2: Convert to fraction form
    582,912.72/874,018.68 = 395,355.60/x
  3. Step 3: Cross multiply
    582,912.72x = 874,018.68 × 395,355.60
  4. Step 4: Simplify right side
    582,912.72x = 345,548,179,642.61
  5. Step 5: Solve for x
    x = 345,548,179,642.61/582,912.72
  6. Step 6: Final answer
    x = 592,795.74

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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.