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Finding the Fourth Proportional to 326,100.80, 488,908.20 and 168,442.40

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Solution

The fourth proportional to 326,100.80, 488,908.20 and 168,442.40 is: 252,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,100.80 : 488,908.20 = 168,442.40 : x
  2. Step 2: Convert to fraction form
    326,100.80/488,908.20 = 168,442.40/x
  3. Step 3: Cross multiply
    326,100.80x = 488,908.20 × 168,442.40
  4. Step 4: Simplify right side
    326,100.80x = 82,352,870,587.68
  5. Step 5: Solve for x
    x = 82,352,870,587.68/326,100.80
  6. Step 6: Final answer
    x = 252,538.08

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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.