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Finding the Fourth Proportional to 577,703.16, 797,215.50 and 319,589.82

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Solution

The fourth proportional to 577,703.16, 797,215.50 and 319,589.82 is: 441,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,703.16 : 797,215.50 = 319,589.82 : x
  2. Step 2: Convert to fraction form
    577,703.16/797,215.50 = 319,589.82/x
  3. Step 3: Cross multiply
    577,703.16x = 797,215.50 × 319,589.82
  4. Step 4: Simplify right side
    577,703.16x = 254,781,958,146.21
  5. Step 5: Solve for x
    x = 254,781,958,146.21/577,703.16
  6. Step 6: Final answer
    x = 441,025.73

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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.