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Finding the Fourth Proportional to 295,328.80, 442,993.20 and 206,682.40

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Solution

The fourth proportional to 295,328.80, 442,993.20 and 206,682.40 is: 310,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,328.80 : 442,993.20 = 206,682.40 : x
  2. Step 2: Convert to fraction form
    295,328.80/442,993.20 = 206,682.40/x
  3. Step 3: Cross multiply
    295,328.80x = 442,993.20 × 206,682.40
  4. Step 4: Simplify right side
    295,328.80x = 91,558,897,759.68
  5. Step 5: Solve for x
    x = 91,558,897,759.68/295,328.80
  6. Step 6: Final answer
    x = 310,023.60

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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.