Home / 405,112.10-558,879.06-243,873.73

Finding the Fourth Proportional to 405,112.10, 558,879.06 and 243,873.73

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Solution

The fourth proportional to 405,112.10, 558,879.06 and 243,873.73 is: 336,440.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,112.10 : 558,879.06 = 243,873.73 : x
  2. Step 2: Convert to fraction form
    405,112.10/558,879.06 = 243,873.73/x
  3. Step 3: Cross multiply
    405,112.10x = 558,879.06 × 243,873.73
  4. Step 4: Simplify right side
    405,112.10x = 136,295,919,583.90
  5. Step 5: Solve for x
    x = 136,295,919,583.90/405,112.10
  6. Step 6: Final answer
    x = 336,440.01

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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.