Home / 395,512.07-545,805.34-214,223.54

Finding the Fourth Proportional to 395,512.07, 545,805.34 and 214,223.54

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Solution

The fourth proportional to 395,512.07, 545,805.34 and 214,223.54 is: 295,627.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,512.07 : 545,805.34 = 214,223.54 : x
  2. Step 2: Convert to fraction form
    395,512.07/545,805.34 = 214,223.54/x
  3. Step 3: Cross multiply
    395,512.07x = 545,805.34 × 214,223.54
  4. Step 4: Simplify right side
    395,512.07x = 116,924,348,821.12
  5. Step 5: Solve for x
    x = 116,924,348,821.12/395,512.07
  6. Step 6: Final answer
    x = 295,627.77

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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.