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Finding the Fourth Proportional to 488,716.76, 674,457.10 and 273,926.22

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Solution

The fourth proportional to 488,716.76, 674,457.10 and 273,926.22 is: 378,033.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,716.76 : 674,457.10 = 273,926.22 : x
  2. Step 2: Convert to fraction form
    488,716.76/674,457.10 = 273,926.22/x
  3. Step 3: Cross multiply
    488,716.76x = 674,457.10 × 273,926.22
  4. Step 4: Simplify right side
    488,716.76x = 184,751,483,955.16
  5. Step 5: Solve for x
    x = 184,751,483,955.16/488,716.76
  6. Step 6: Final answer
    x = 378,033.86

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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.