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Finding the Fourth Proportional to 422,795.06, 583,484.20 and 279,303.56

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Solution

The fourth proportional to 422,795.06, 583,484.20 and 279,303.56 is: 385,456.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,795.06 : 583,484.20 = 279,303.56 : x
  2. Step 2: Convert to fraction form
    422,795.06/583,484.20 = 279,303.56/x
  3. Step 3: Cross multiply
    422,795.06x = 583,484.20 × 279,303.56
  4. Step 4: Simplify right side
    422,795.06x = 162,969,214,263.75
  5. Step 5: Solve for x
    x = 162,969,214,263.75/422,795.06
  6. Step 6: Final answer
    x = 385,456.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.