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Finding the Fourth Proportional to 405,527.94, 559,404.09 and 235,743.30

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Solution

The fourth proportional to 405,527.94, 559,404.09 and 235,743.30 is: 325,195.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,527.94 : 559,404.09 = 235,743.30 : x
  2. Step 2: Convert to fraction form
    405,527.94/559,404.09 = 235,743.30/x
  3. Step 3: Cross multiply
    405,527.94x = 559,404.09 × 235,743.30
  4. Step 4: Simplify right side
    405,527.94x = 131,875,766,210.10
  5. Step 5: Solve for x
    x = 131,875,766,210.10/405,527.94
  6. Step 6: Final answer
    x = 325,195.27

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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.