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Finding the Fourth Proportional to 578,046.36, 797,976.72 and 434,861.04

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Solution

The fourth proportional to 578,046.36, 797,976.72 and 434,861.04 is: 600,313.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,046.36 : 797,976.72 = 434,861.04 : x
  2. Step 2: Convert to fraction form
    578,046.36/797,976.72 = 434,861.04/x
  3. Step 3: Cross multiply
    578,046.36x = 797,976.72 × 434,861.04
  4. Step 4: Simplify right side
    578,046.36x = 347,008,986,354.99
  5. Step 5: Solve for x
    x = 347,008,986,354.99/578,046.36
  6. Step 6: Final answer
    x = 600,313.42

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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.