Home / 505,060.38-697,049.64-351,999.54

Finding the Fourth Proportional to 505,060.38, 697,049.64 and 351,999.54

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Solution

The fourth proportional to 505,060.38, 697,049.64 and 351,999.54 is: 485,805.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,060.38 : 697,049.64 = 351,999.54 : x
  2. Step 2: Convert to fraction form
    505,060.38/697,049.64 = 351,999.54/x
  3. Step 3: Cross multiply
    505,060.38x = 697,049.64 × 351,999.54
  4. Step 4: Simplify right side
    505,060.38x = 245,361,152,637.17
  5. Step 5: Solve for x
    x = 245,361,152,637.17/505,060.38
  6. Step 6: Final answer
    x = 485,805.58

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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.