Home / 384,861.09-531,085.44-212,768.77

Finding the Fourth Proportional to 384,861.09, 531,085.44 and 212,768.77

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Solution

The fourth proportional to 384,861.09, 531,085.44 and 212,768.77 is: 293,608.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,861.09 : 531,085.44 = 212,768.77 : x
  2. Step 2: Convert to fraction form
    384,861.09/531,085.44 = 212,768.77/x
  3. Step 3: Cross multiply
    384,861.09x = 531,085.44 × 212,768.77
  4. Step 4: Simplify right side
    384,861.09x = 112,998,394,470.26
  5. Step 5: Solve for x
    x = 112,998,394,470.26/384,861.09
  6. Step 6: Final answer
    x = 293,608.26

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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.