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Finding the Fourth Proportional to 574,431.80, 792,694.50 and 319,777.52

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Solution

The fourth proportional to 574,431.80, 792,694.50 and 319,777.52 is: 441,281.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,431.80 : 792,694.50 = 319,777.52 : x
  2. Step 2: Convert to fraction form
    574,431.80/792,694.50 = 319,777.52/x
  3. Step 3: Cross multiply
    574,431.80x = 792,694.50 × 319,777.52
  4. Step 4: Simplify right side
    574,431.80x = 253,485,881,327.64
  5. Step 5: Solve for x
    x = 253,485,881,327.64/574,431.80
  6. Step 6: Final answer
    x = 441,281.07

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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.