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Finding the Fourth Proportional to 577,754.45, 797,501.55 and 397,064.51

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Solution

The fourth proportional to 577,754.45, 797,501.55 and 397,064.51 is: 548,086.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,754.45 : 797,501.55 = 397,064.51 : x
  2. Step 2: Convert to fraction form
    577,754.45/797,501.55 = 397,064.51/x
  3. Step 3: Cross multiply
    577,754.45x = 797,501.55 × 397,064.51
  4. Step 4: Simplify right side
    577,754.45x = 316,659,562,174.99
  5. Step 5: Solve for x
    x = 316,659,562,174.99/577,754.45
  6. Step 6: Final answer
    x = 548,086.76

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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.