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Finding the Fourth Proportional to 560,751.37, 773,826.90 and 319,028.74

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Solution

The fourth proportional to 560,751.37, 773,826.90 and 319,028.74 is: 440,253.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,751.37 : 773,826.90 = 319,028.74 : x
  2. Step 2: Convert to fraction form
    560,751.37/773,826.90 = 319,028.74/x
  3. Step 3: Cross multiply
    560,751.37x = 773,826.90 × 319,028.74
  4. Step 4: Simplify right side
    560,751.37x = 246,873,017,015.97
  5. Step 5: Solve for x
    x = 246,873,017,015.97/560,751.37
  6. Step 6: Final answer
    x = 440,253.97

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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.