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Finding the Fourth Proportional to 496,993.60, 685,858.98 and 270,638.92

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Solution

The fourth proportional to 496,993.60, 685,858.98 and 270,638.92 is: 373,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,993.60 : 685,858.98 = 270,638.92 : x
  2. Step 2: Convert to fraction form
    496,993.60/685,858.98 = 270,638.92/x
  3. Step 3: Cross multiply
    496,993.60x = 685,858.98 × 270,638.92
  4. Step 4: Simplify right side
    496,993.60x = 185,620,133,619.50
  5. Step 5: Solve for x
    x = 185,620,133,619.50/496,993.60
  6. Step 6: Final answer
    x = 373,485.96

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1.5x scale

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.