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Finding the Fourth Proportional to 448,002.60, 672,003.90 and 271,055.40

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Solution

The fourth proportional to 448,002.60, 672,003.90 and 271,055.40 is: 406,583.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,002.60 : 672,003.90 = 271,055.40 : x
  2. Step 2: Convert to fraction form
    448,002.60/672,003.90 = 271,055.40/x
  3. Step 3: Cross multiply
    448,002.60x = 672,003.90 × 271,055.40
  4. Step 4: Simplify right side
    448,002.60x = 182,150,285,916.06
  5. Step 5: Solve for x
    x = 182,150,285,916.06/448,002.60
  6. Step 6: Final answer
    x = 406,583.10

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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.