Home / 326,456.12-489,517.46-191,783.22

Finding the Fourth Proportional to 326,456.12, 489,517.46 and 191,783.22

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Solution

The fourth proportional to 326,456.12, 489,517.46 and 191,783.22 is: 287,576.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,456.12 : 489,517.46 = 191,783.22 : x
  2. Step 2: Convert to fraction form
    326,456.12/489,517.46 = 191,783.22/x
  3. Step 3: Cross multiply
    326,456.12x = 489,517.46 × 191,783.22
  4. Step 4: Simplify right side
    326,456.12x = 93,881,234,725.02
  5. Step 5: Solve for x
    x = 93,881,234,725.02/326,456.12
  6. Step 6: Final answer
    x = 287,576.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.