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Finding the Fourth Proportional to 323,411,884.80, 485,138,822.40 and 170,356,876.80

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Solution

The fourth proportional to 323,411,884.80, 485,138,822.40 and 170,356,876.80 is: 255,546,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,411,884.80 : 485,138,822.40 = 170,356,876.80 : x
  2. Step 2: Convert to fraction form
    323,411,884.80/485,138,822.40 = 170,356,876.80/x
  3. Step 3: Cross multiply
    323,411,884.80x = 485,138,822.40 × 170,356,876.80
  4. Step 4: Simplify right side
    323,411,884.80x = 82,646,734,598,493,888
  5. Step 5: Solve for x
    x = 82,646,734,598,493,888/323,411,884.80
  6. Step 6: Final answer
    x = 255,546,374.40

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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.