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Finding the Fourth Proportional to 326,335.75, 450,371.84 and 190,413.49

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Solution

The fourth proportional to 326,335.75, 450,371.84 and 190,413.49 is: 262,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,335.75 : 450,371.84 = 190,413.49 : x
  2. Step 2: Convert to fraction form
    326,335.75/450,371.84 = 190,413.49/x
  3. Step 3: Cross multiply
    326,335.75x = 450,371.84 × 190,413.49
  4. Step 4: Simplify right side
    326,335.75x = 85,756,873,852.12
  5. Step 5: Solve for x
    x = 85,756,873,852.12/326,335.75
  6. Step 6: Final answer
    x = 262,787.25

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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.