Home / 446,688.90-669,968.55-131,112.90

Finding the Fourth Proportional to 446,688.90, 669,968.55 and 131,112.90

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Solution

The fourth proportional to 446,688.90, 669,968.55 and 131,112.90 is: 196,650.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,688.90 : 669,968.55 = 131,112.90 : x
  2. Step 2: Convert to fraction form
    446,688.90/669,968.55 = 131,112.90/x
  3. Step 3: Cross multiply
    446,688.90x = 669,968.55 × 131,112.90
  4. Step 4: Simplify right side
    446,688.90x = 87,841,519,499.30
  5. Step 5: Solve for x
    x = 87,841,519,499.30/446,688.90
  6. Step 6: Final answer
    x = 196,650.33

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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.