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Finding the Fourth Proportional to 326,085.53, 449,477.97 and 257,062.46

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Solution

The fourth proportional to 326,085.53, 449,477.97 and 257,062.46 is: 354,336.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,085.53 : 449,477.97 = 257,062.46 : x
  2. Step 2: Convert to fraction form
    326,085.53/449,477.97 = 257,062.46/x
  3. Step 3: Cross multiply
    326,085.53x = 449,477.97 × 257,062.46
  4. Step 4: Simplify right side
    326,085.53x = 115,543,910,436.62
  5. Step 5: Solve for x
    x = 115,543,910,436.62/326,085.53
  6. Step 6: Final answer
    x = 354,336.21

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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.