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Finding the Fourth Proportional to 295,221.40, 442,832.10 and 170,416.60

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Solution

The fourth proportional to 295,221.40, 442,832.10 and 170,416.60 is: 255,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,221.40 : 442,832.10 = 170,416.60 : x
  2. Step 2: Convert to fraction form
    295,221.40/442,832.10 = 170,416.60/x
  3. Step 3: Cross multiply
    295,221.40x = 442,832.10 × 170,416.60
  4. Step 4: Simplify right side
    295,221.40x = 75,465,940,852.86
  5. Step 5: Solve for x
    x = 75,465,940,852.86/295,221.40
  6. Step 6: Final answer
    x = 255,624.90

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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.