Home / 415,534.20-623,333.70-178,884.60

Finding the Fourth Proportional to 415,534.20, 623,333.70 and 178,884.60

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Solution

The fourth proportional to 415,534.20, 623,333.70 and 178,884.60 is: 268,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,534.20 : 623,333.70 = 178,884.60 : x
  2. Step 2: Convert to fraction form
    415,534.20/623,333.70 = 178,884.60/x
  3. Step 3: Cross multiply
    415,534.20x = 623,333.70 × 178,884.60
  4. Step 4: Simplify right side
    415,534.20x = 111,504,799,591.02
  5. Step 5: Solve for x
    x = 111,504,799,591.02/415,534.20
  6. Step 6: Final answer
    x = 268,340.85

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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.