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Finding the Fourth Proportional to 326,708.16, 450,906.08 and 199,457.68

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Solution

The fourth proportional to 326,708.16, 450,906.08 and 199,457.68 is: 275,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,708.16 : 450,906.08 = 199,457.68 : x
  2. Step 2: Convert to fraction form
    326,708.16/450,906.08 = 199,457.68/x
  3. Step 3: Cross multiply
    326,708.16x = 450,906.08 × 199,457.68
  4. Step 4: Simplify right side
    326,708.16x = 89,936,680,614.69
  5. Step 5: Solve for x
    x = 89,936,680,614.69/326,708.16
  6. Step 6: Final answer
    x = 275,281.40

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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.