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Finding the Fourth Proportional to 628,734.44, 942,572.64 and 273,480.88

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Solution

The fourth proportional to 628,734.44, 942,572.64 and 273,480.88 is: 409,991.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,734.44 : 942,572.64 = 273,480.88 : x
  2. Step 2: Convert to fraction form
    628,734.44/942,572.64 = 273,480.88/x
  3. Step 3: Cross multiply
    628,734.44x = 942,572.64 × 273,480.88
  4. Step 4: Simplify right side
    628,734.44x = 257,775,595,051.12
  5. Step 5: Solve for x
    x = 257,775,595,051.12/628,734.44
  6. Step 6: Final answer
    x = 409,991.21

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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.