Home / 379,305.28-523,456.32-218,160.14

Finding the Fourth Proportional to 379,305.28, 523,456.32 and 218,160.14

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Solution

The fourth proportional to 379,305.28, 523,456.32 and 218,160.14 is: 301,069.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,305.28 : 523,456.32 = 218,160.14 : x
  2. Step 2: Convert to fraction form
    379,305.28/523,456.32 = 218,160.14/x
  3. Step 3: Cross multiply
    379,305.28x = 523,456.32 × 218,160.14
  4. Step 4: Simplify right side
    379,305.28x = 114,197,302,255.90
  5. Step 5: Solve for x
    x = 114,197,302,255.90/379,305.28
  6. Step 6: Final answer
    x = 301,069.63

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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.