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Finding the Fourth Proportional to 488,312.28, 673,913.34 and 273,448.44

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Solution

The fourth proportional to 488,312.28, 673,913.34 and 273,448.44 is: 377,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,312.28 : 673,913.34 = 273,448.44 : x
  2. Step 2: Convert to fraction form
    488,312.28/673,913.34 = 273,448.44/x
  3. Step 3: Cross multiply
    488,312.28x = 673,913.34 × 273,448.44
  4. Step 4: Simplify right side
    488,312.28x = 184,280,551,518.19
  5. Step 5: Solve for x
    x = 184,280,551,518.19/488,312.28
  6. Step 6: Final answer
    x = 377,382.59

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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.