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Finding the Fourth Proportional to 364,039.80, 546,059.70 and 331,380.60

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Solution

The fourth proportional to 364,039.80, 546,059.70 and 331,380.60 is: 497,070.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,039.80 : 546,059.70 = 331,380.60 : x
  2. Step 2: Convert to fraction form
    364,039.80/546,059.70 = 331,380.60/x
  3. Step 3: Cross multiply
    364,039.80x = 546,059.70 × 331,380.60
  4. Step 4: Simplify right side
    364,039.80x = 180,953,591,021.82
  5. Step 5: Solve for x
    x = 180,953,591,021.82/364,039.80
  6. Step 6: Final answer
    x = 497,070.90

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Similar ratio
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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.