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Finding the Fourth Proportional to 324,690.35, 448,210.64 and 197,406.59

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Solution

The fourth proportional to 324,690.35, 448,210.64 and 197,406.59 is: 272,504.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,690.35 : 448,210.64 = 197,406.59 : x
  2. Step 2: Convert to fraction form
    324,690.35/448,210.64 = 197,406.59/x
  3. Step 3: Cross multiply
    324,690.35x = 448,210.64 × 197,406.59
  4. Step 4: Simplify right side
    324,690.35x = 88,479,733,057.08
  5. Step 5: Solve for x
    x = 88,479,733,057.08/324,690.35
  6. Step 6: Final answer
    x = 272,504.97

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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.