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Finding the Fourth Proportional to 577,705.01, 797,217.99 and 319,575.23

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Solution

The fourth proportional to 577,705.01, 797,217.99 and 319,575.23 is: 441,005.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,705.01 : 797,217.99 = 319,575.23 : x
  2. Step 2: Convert to fraction form
    577,705.01/797,217.99 = 319,575.23/x
  3. Step 3: Cross multiply
    577,705.01x = 797,217.99 × 319,575.23
  4. Step 4: Simplify right side
    577,705.01x = 254,771,122,514.39
  5. Step 5: Solve for x
    x = 254,771,122,514.39/577,705.01
  6. Step 6: Final answer
    x = 441,005.56

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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.