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Finding the Fourth Proportional to 574,228.44, 792,418.68 and 319,574.16

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Solution

The fourth proportional to 574,228.44, 792,418.68 and 319,574.16 is: 441,003.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,228.44 : 792,418.68 = 319,574.16 : x
  2. Step 2: Convert to fraction form
    574,228.44/792,418.68 = 319,574.16/x
  3. Step 3: Cross multiply
    574,228.44x = 792,418.68 × 319,574.16
  4. Step 4: Simplify right side
    574,228.44x = 253,236,534,029.31
  5. Step 5: Solve for x
    x = 253,236,534,029.31/574,228.44
  6. Step 6: Final answer
    x = 441,003.12

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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.