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Finding the Fourth Proportional to 298,217.60, 411,550.12 and 170,917.60

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Solution

The fourth proportional to 298,217.60, 411,550.12 and 170,917.60 is: 235,871.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,217.60 : 411,550.12 = 170,917.60 : x
  2. Step 2: Convert to fraction form
    298,217.60/411,550.12 = 170,917.60/x
  3. Step 3: Cross multiply
    298,217.60x = 411,550.12 × 170,917.60
  4. Step 4: Simplify right side
    298,217.60x = 70,341,158,790.11
  5. Step 5: Solve for x
    x = 70,341,158,790.11/298,217.60
  6. Step 6: Final answer
    x = 235,871.92

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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.