Home / 505,821.21-698,025.09-276,373.59

Finding the Fourth Proportional to 505,821.21, 698,025.09 and 276,373.59

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Solution

The fourth proportional to 505,821.21, 698,025.09 and 276,373.59 is: 381,391.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,821.21 : 698,025.09 = 276,373.59 : x
  2. Step 2: Convert to fraction form
    505,821.21/698,025.09 = 276,373.59/x
  3. Step 3: Cross multiply
    505,821.21x = 698,025.09 × 276,373.59
  4. Step 4: Simplify right side
    505,821.21x = 192,915,700,033.37
  5. Step 5: Solve for x
    x = 192,915,700,033.37/505,821.21
  6. Step 6: Final answer
    x = 381,391.08

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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.