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Finding the Fourth Proportional to 577,754.51, 797,501.62 and 397,064.57

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Solution

The fourth proportional to 577,754.51, 797,501.62 and 397,064.57 is: 548,086.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,754.51 : 797,501.62 = 397,064.57 : x
  2. Step 2: Convert to fraction form
    577,754.51/797,501.62 = 397,064.57/x
  3. Step 3: Cross multiply
    577,754.51x = 797,501.62 × 397,064.57
  4. Step 4: Simplify right side
    577,754.51x = 316,659,637,819.60
  5. Step 5: Solve for x
    x = 316,659,637,819.60/577,754.51
  6. Step 6: Final answer
    x = 548,086.83

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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.