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Finding the Fourth Proportional to 490,652.64, 735,542.64 and 191,063.52

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Solution

The fourth proportional to 490,652.64, 735,542.64 and 191,063.52 is: 286,425.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,652.64 : 735,542.64 = 191,063.52 : x
  2. Step 2: Convert to fraction form
    490,652.64/735,542.64 = 191,063.52/x
  3. Step 3: Cross multiply
    490,652.64x = 735,542.64 × 191,063.52
  4. Step 4: Simplify right side
    490,652.64x = 140,535,365,908.49
  5. Step 5: Solve for x
    x = 140,535,365,908.49/490,652.64
  6. Step 6: Final answer
    x = 286,425.37

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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.