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Finding the Fourth Proportional to 582,992.80, 872,415.60 and 404,663.20

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Solution

The fourth proportional to 582,992.80, 872,415.60 and 404,663.20 is: 605,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,992.80 : 872,415.60 = 404,663.20 : x
  2. Step 2: Convert to fraction form
    582,992.80/872,415.60 = 404,663.20/x
  3. Step 3: Cross multiply
    582,992.80x = 872,415.60 × 404,663.20
  4. Step 4: Simplify right side
    582,992.80x = 353,034,488,425.92
  5. Step 5: Solve for x
    x = 353,034,488,425.92/582,992.80
  6. Step 6: Final answer
    x = 605,555.49

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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.