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Finding the Fourth Proportional to 574,231.67, 792,439.70 and 319,643.00

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Solution

The fourth proportional to 574,231.67, 792,439.70 and 319,643.00 is: 441,107.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,231.67 : 792,439.70 = 319,643.00 : x
  2. Step 2: Convert to fraction form
    574,231.67/792,439.70 = 319,643.00/x
  3. Step 3: Cross multiply
    574,231.67x = 792,439.70 × 319,643.00
  4. Step 4: Simplify right side
    574,231.67x = 253,297,799,064.90
  5. Step 5: Solve for x
    x = 253,297,799,064.90/574,231.67
  6. Step 6: Final answer
    x = 441,107.33

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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.