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Finding the Fourth Proportional to 323,436.54, 446,039.69 and 255,615.54

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Solution

The fourth proportional to 323,436.54, 446,039.69 and 255,615.54 is: 352,510.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,436.54 : 446,039.69 = 255,615.54 : x
  2. Step 2: Convert to fraction form
    323,436.54/446,039.69 = 255,615.54/x
  3. Step 3: Cross multiply
    323,436.54x = 446,039.69 × 255,615.54
  4. Step 4: Simplify right side
    323,436.54x = 114,014,678,203.57
  5. Step 5: Solve for x
    x = 114,014,678,203.57/323,436.54
  6. Step 6: Final answer
    x = 352,510.19

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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.