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Finding the Fourth Proportional to 326,806.18, 490,288.08 and 113,543.06

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Solution

The fourth proportional to 326,806.18, 490,288.08 and 113,543.06 is: 170,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,806.18 : 490,288.08 = 113,543.06 : x
  2. Step 2: Convert to fraction form
    326,806.18/490,288.08 = 113,543.06/x
  3. Step 3: Cross multiply
    326,806.18x = 490,288.08 × 113,543.06
  4. Step 4: Simplify right side
    326,806.18x = 55,668,808,884.72
  5. Step 5: Solve for x
    x = 55,668,808,884.72/326,806.18
  6. Step 6: Final answer
    x = 170,341.97

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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.