Home / 326,231.10-489,346.65-112,998.60

Finding the Fourth Proportional to 326,231.10, 489,346.65 and 112,998.60

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Solution

The fourth proportional to 326,231.10, 489,346.65 and 112,998.60 is: 169,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,231.10 : 489,346.65 = 112,998.60 : x
  2. Step 2: Convert to fraction form
    326,231.10/489,346.65 = 112,998.60/x
  3. Step 3: Cross multiply
    326,231.10x = 489,346.65 × 112,998.60
  4. Step 4: Simplify right side
    326,231.10x = 55,295,486,364.69
  5. Step 5: Solve for x
    x = 55,295,486,364.69/326,231.10
  6. Step 6: Final answer
    x = 169,497.90

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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.