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Finding the Fourth Proportional to 488,875.55, 674,646.10 and 274,015.62

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Solution

The fourth proportional to 488,875.55, 674,646.10 and 274,015.62 is: 378,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,875.55 : 674,646.10 = 274,015.62 : x
  2. Step 2: Convert to fraction form
    488,875.55/674,646.10 = 274,015.62/x
  3. Step 3: Cross multiply
    488,875.55x = 674,646.10 × 274,015.62
  4. Step 4: Simplify right side
    488,875.55x = 184,863,568,687.04
  5. Step 5: Solve for x
    x = 184,863,568,687.04/488,875.55
  6. Step 6: Final answer
    x = 378,140.35

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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.