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Finding the Fourth Proportional to 488,435.68, 674,066.64 and 273,563.20

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Solution

The fourth proportional to 488,435.68, 674,066.64 and 273,563.20 is: 377,531.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,435.68 : 674,066.64 = 273,563.20 : x
  2. Step 2: Convert to fraction form
    488,435.68/674,066.64 = 273,563.20/x
  3. Step 3: Cross multiply
    488,435.68x = 674,066.64 × 273,563.20
  4. Step 4: Simplify right side
    488,435.68x = 184,399,827,051.65
  5. Step 5: Solve for x
    x = 184,399,827,051.65/488,435.68
  6. Step 6: Final answer
    x = 377,531.44

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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.