Home / 505,135.89-697,087.87-376,185.22

Finding the Fourth Proportional to 505,135.89, 697,087.87 and 376,185.22

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Solution

The fourth proportional to 505,135.89, 697,087.87 and 376,185.22 is: 519,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,135.89 : 697,087.87 = 376,185.22 : x
  2. Step 2: Convert to fraction form
    505,135.89/697,087.87 = 376,185.22/x
  3. Step 3: Cross multiply
    505,135.89x = 697,087.87 × 376,185.22
  4. Step 4: Simplify right side
    505,135.89x = 262,234,151,052.10
  5. Step 5: Solve for x
    x = 262,234,151,052.10/505,135.89
  6. Step 6: Final answer
    x = 519,135.85

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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.