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Finding the Fourth Proportional to 577,940.27, 798,320.07 and 443,633.90

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Solution

The fourth proportional to 577,940.27, 798,320.07 and 443,633.90 is: 612,800.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,940.27 : 798,320.07 = 443,633.90 : x
  2. Step 2: Convert to fraction form
    577,940.27/798,320.07 = 443,633.90/x
  3. Step 3: Cross multiply
    577,940.27x = 798,320.07 × 443,633.90
  4. Step 4: Simplify right side
    577,940.27x = 354,161,842,110.77
  5. Step 5: Solve for x
    x = 354,161,842,110.77/577,940.27
  6. Step 6: Final answer
    x = 612,800.08

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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.