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Finding the Fourth Proportional to 326,323, 450,326.82 and 190,450.36

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Solution

The fourth proportional to 326,323, 450,326.82 and 190,450.36 is: 262,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,323 : 450,326.82 = 190,450.36 : x
  2. Step 2: Convert to fraction form
    326,323/450,326.82 = 190,450.36/x
  3. Step 3: Cross multiply
    326,323x = 450,326.82 × 190,450.36
  4. Step 4: Simplify right side
    326,323x = 85,764,904,986.66
  5. Step 5: Solve for x
    x = 85,764,904,986.66/326,323
  6. Step 6: Final answer
    x = 262,822.13

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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.