Home / 305,939.70-458,909.55-193,746.60

Finding the Fourth Proportional to 305,939.70, 458,909.55 and 193,746.60

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Solution

The fourth proportional to 305,939.70, 458,909.55 and 193,746.60 is: 290,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,939.70 : 458,909.55 = 193,746.60 : x
  2. Step 2: Convert to fraction form
    305,939.70/458,909.55 = 193,746.60/x
  3. Step 3: Cross multiply
    305,939.70x = 458,909.55 × 193,746.60
  4. Step 4: Simplify right side
    305,939.70x = 88,912,165,020.03
  5. Step 5: Solve for x
    x = 88,912,165,020.03/305,939.70
  6. Step 6: Final answer
    x = 290,619.90

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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.