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Finding the Fourth Proportional to 325,841.20, 488,761.80 and 302,221.60

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Solution

The fourth proportional to 325,841.20, 488,761.80 and 302,221.60 is: 453,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,841.20 : 488,761.80 = 302,221.60 : x
  2. Step 2: Convert to fraction form
    325,841.20/488,761.80 = 302,221.60/x
  3. Step 3: Cross multiply
    325,841.20x = 488,761.80 × 302,221.60
  4. Step 4: Simplify right side
    325,841.20x = 147,714,373,214.88
  5. Step 5: Solve for x
    x = 147,714,373,214.88/325,841.20
  6. Step 6: Final answer
    x = 453,332.40

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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.