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Finding the Fourth Proportional to 405,081.96, 559,013.13 and 235,327.02

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Solution

The fourth proportional to 405,081.96, 559,013.13 and 235,327.02 is: 324,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,081.96 : 559,013.13 = 235,327.02 : x
  2. Step 2: Convert to fraction form
    405,081.96/559,013.13 = 235,327.02/x
  3. Step 3: Cross multiply
    405,081.96x = 559,013.13 × 235,327.02
  4. Step 4: Simplify right side
    405,081.96x = 131,550,894,023.77
  5. Step 5: Solve for x
    x = 131,550,894,023.77/405,081.96
  6. Step 6: Final answer
    x = 324,751.30

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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.