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Finding the Fourth Proportional to 490,161.93, 735,288.26 and 190,665.24

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Solution

The fourth proportional to 490,161.93, 735,288.26 and 190,665.24 is: 286,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,161.93 : 735,288.26 = 190,665.24 : x
  2. Step 2: Convert to fraction form
    490,161.93/735,288.26 = 190,665.24/x
  3. Step 3: Cross multiply
    490,161.93x = 735,288.26 × 190,665.24
  4. Step 4: Simplify right side
    490,161.93x = 140,193,911,608.76
  5. Step 5: Solve for x
    x = 140,193,911,608.76/490,161.93
  6. Step 6: Final answer
    x = 286,015.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.