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Finding the Fourth Proportional to 504,884.72, 696,742.86 and 275,447.15

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Solution

The fourth proportional to 504,884.72, 696,742.86 and 275,447.15 is: 380,118.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,884.72 : 696,742.86 = 275,447.15 : x
  2. Step 2: Convert to fraction form
    504,884.72/696,742.86 = 275,447.15/x
  3. Step 3: Cross multiply
    504,884.72x = 696,742.86 × 275,447.15
  4. Step 4: Simplify right side
    504,884.72x = 191,915,831,586.14
  5. Step 5: Solve for x
    x = 191,915,831,586.14/504,884.72
  6. Step 6: Final answer
    x = 380,118.13

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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.