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Finding the Fourth Proportional to 577,781.87, 797,362.47 and 319,654.35

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Solution

The fourth proportional to 577,781.87, 797,362.47 and 319,654.35 is: 441,136.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,781.87 : 797,362.47 = 319,654.35 : x
  2. Step 2: Convert to fraction form
    577,781.87/797,362.47 = 319,654.35/x
  3. Step 3: Cross multiply
    577,781.87x = 797,362.47 × 319,654.35
  4. Step 4: Simplify right side
    577,781.87x = 254,880,382,062.24
  5. Step 5: Solve for x
    x = 254,880,382,062.24/577,781.87
  6. Step 6: Final answer
    x = 441,136.00

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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.