Home / 320,716.66-442,558.93-191,629.44

Finding the Fourth Proportional to 320,716.66, 442,558.93 and 191,629.44

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Solution

The fourth proportional to 320,716.66, 442,558.93 and 191,629.44 is: 264,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,716.66 : 442,558.93 = 191,629.44 : x
  2. Step 2: Convert to fraction form
    320,716.66/442,558.93 = 191,629.44/x
  3. Step 3: Cross multiply
    320,716.66x = 442,558.93 × 191,629.44
  4. Step 4: Simplify right side
    320,716.66x = 84,807,319,922.90
  5. Step 5: Solve for x
    x = 84,807,319,922.90/320,716.66
  6. Step 6: Final answer
    x = 264,430.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.