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Finding the Fourth Proportional to 326,149.50, 450,087.12 and 190,276.86

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Solution

The fourth proportional to 326,149.50, 450,087.12 and 190,276.86 is: 262,582.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,149.50 : 450,087.12 = 190,276.86 : x
  2. Step 2: Convert to fraction form
    326,149.50/450,087.12 = 190,276.86/x
  3. Step 3: Cross multiply
    326,149.50x = 450,087.12 × 190,276.86
  4. Step 4: Simplify right side
    326,149.50x = 85,641,163,920.04
  5. Step 5: Solve for x
    x = 85,641,163,920.04/326,149.50
  6. Step 6: Final answer
    x = 262,582.54

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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.