Home / 305,890.80-458,836.20-199,602.60

Finding the Fourth Proportional to 305,890.80, 458,836.20 and 199,602.60

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Solution

The fourth proportional to 305,890.80, 458,836.20 and 199,602.60 is: 299,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,890.80 : 458,836.20 = 199,602.60 : x
  2. Step 2: Convert to fraction form
    305,890.80/458,836.20 = 199,602.60/x
  3. Step 3: Cross multiply
    305,890.80x = 458,836.20 × 199,602.60
  4. Step 4: Simplify right side
    305,890.80x = 91,584,898,494.12
  5. Step 5: Solve for x
    x = 91,584,898,494.12/305,890.80
  6. Step 6: Final answer
    x = 299,403.90

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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.