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Finding the Fourth Proportional to 448,593.10, 673,256.85 and 445,093.90

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Solution

The fourth proportional to 448,593.10, 673,256.85 and 445,093.90 is: 668,005.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,593.10 : 673,256.85 = 445,093.90 : x
  2. Step 2: Convert to fraction form
    448,593.10/673,256.85 = 445,093.90/x
  3. Step 3: Cross multiply
    448,593.10x = 673,256.85 × 445,093.90
  4. Step 4: Simplify right side
    448,593.10x = 299,662,517,068.22
  5. Step 5: Solve for x
    x = 299,662,517,068.22/448,593.10
  6. Step 6: Final answer
    x = 668,005.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.