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Finding the Fourth Proportional to 405,353.65, 559,443.60 and 233,268.07

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Solution

The fourth proportional to 405,353.65, 559,443.60 and 233,268.07 is: 321,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,353.65 : 559,443.60 = 233,268.07 : x
  2. Step 2: Convert to fraction form
    405,353.65/559,443.60 = 233,268.07/x
  3. Step 3: Cross multiply
    405,353.65x = 559,443.60 × 233,268.07
  4. Step 4: Simplify right side
    405,353.65x = 130,500,328,845.85
  5. Step 5: Solve for x
    x = 130,500,328,845.85/405,353.65
  6. Step 6: Final answer
    x = 321,941.91

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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.