Home / 405,278.37-559,353.60-235,610.91

Finding the Fourth Proportional to 405,278.37, 559,353.60 and 235,610.91

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Solution

The fourth proportional to 405,278.37, 559,353.60 and 235,610.91 is: 325,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,278.37 : 559,353.60 = 235,610.91 : x
  2. Step 2: Convert to fraction form
    405,278.37/559,353.60 = 235,610.91/x
  3. Step 3: Cross multiply
    405,278.37x = 559,353.60 × 235,610.91
  4. Step 4: Simplify right side
    405,278.37x = 131,789,810,707.78
  5. Step 5: Solve for x
    x = 131,789,810,707.78/405,278.37
  6. Step 6: Final answer
    x = 325,183.43

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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.