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Finding the Fourth Proportional to 578,143.44, 797,310.74 and 496,446.03

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Solution

The fourth proportional to 578,143.44, 797,310.74 and 496,446.03 is: 684,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,143.44 : 797,310.74 = 496,446.03 : x
  2. Step 2: Convert to fraction form
    578,143.44/797,310.74 = 496,446.03/x
  3. Step 3: Cross multiply
    578,143.44x = 797,310.74 × 496,446.03
  4. Step 4: Simplify right side
    578,143.44x = 395,821,751,549.36
  5. Step 5: Solve for x
    x = 395,821,751,549.36/578,143.44
  6. Step 6: Final answer
    x = 684,642.81

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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.