Home / 395,655.20-545,999.82-214,356.30

Finding the Fourth Proportional to 395,655.20, 545,999.82 and 214,356.30

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Solution

The fourth proportional to 395,655.20, 545,999.82 and 214,356.30 is: 295,809.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,655.20 : 545,999.82 = 214,356.30 : x
  2. Step 2: Convert to fraction form
    395,655.20/545,999.82 = 214,356.30/x
  3. Step 3: Cross multiply
    395,655.20x = 545,999.82 × 214,356.30
  4. Step 4: Simplify right side
    395,655.20x = 117,038,501,215.87
  5. Step 5: Solve for x
    x = 117,038,501,215.87/395,655.20
  6. Step 6: Final answer
    x = 295,809.34

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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.