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Finding the Fourth Proportional to 577,729.60, 797,251.98 and 319,616.26

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Solution

The fourth proportional to 577,729.60, 797,251.98 and 319,616.26 is: 441,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,729.60 : 797,251.98 = 319,616.26 : x
  2. Step 2: Convert to fraction form
    577,729.60/797,251.98 = 319,616.26/x
  3. Step 3: Cross multiply
    577,729.60x = 797,251.98 × 319,616.26
  4. Step 4: Simplify right side
    577,729.60x = 254,814,695,330.63
  5. Step 5: Solve for x
    x = 254,814,695,330.63/577,729.60
  6. Step 6: Final answer
    x = 441,062.21

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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.