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Finding the Fourth Proportional to 326,683.96, 450,835.86 and 190,804.84

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Solution

The fourth proportional to 326,683.96, 450,835.86 and 190,804.84 is: 263,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,683.96 : 450,835.86 = 190,804.84 : x
  2. Step 2: Convert to fraction form
    326,683.96/450,835.86 = 190,804.84/x
  3. Step 3: Cross multiply
    326,683.96x = 450,835.86 × 190,804.84
  4. Step 4: Simplify right side
    326,683.96x = 86,021,664,133.56
  5. Step 5: Solve for x
    x = 86,021,664,133.56/326,683.96
  6. Step 6: Final answer
    x = 263,317.69

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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.