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Finding the Fourth Proportional to 5,919,662.25, 8,169,133.91 and 3,203,408.25

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Solution

The fourth proportional to 5,919,662.25, 8,169,133.91 and 3,203,408.25 is: 4,420,703.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919,662.25 : 8,169,133.91 = 3,203,408.25 : x
  2. Step 2: Convert to fraction form
    5,919,662.25/8,169,133.91 = 3,203,408.25/x
  3. Step 3: Cross multiply
    5,919,662.25x = 8,169,133.91 × 3,203,408.25
  4. Step 4: Simplify right side
    5,919,662.25x = 26,169,070,946,631.72
  5. Step 5: Solve for x
    x = 26,169,070,946,631.72/5,919,662.25
  6. Step 6: Final answer
    x = 4,420,703.39

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1.5x scale

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.