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Finding the Fourth Proportional to 323,117.63, 445,912.59 and 202,220.27

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Solution

The fourth proportional to 323,117.63, 445,912.59 and 202,220.27 is: 279,070.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,117.63 : 445,912.59 = 202,220.27 : x
  2. Step 2: Convert to fraction form
    323,117.63/445,912.59 = 202,220.27/x
  3. Step 3: Cross multiply
    323,117.63x = 445,912.59 × 202,220.27
  4. Step 4: Simplify right side
    323,117.63x = 90,172,562,116.64
  5. Step 5: Solve for x
    x = 90,172,562,116.64/323,117.63
  6. Step 6: Final answer
    x = 279,070.39

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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.