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Finding the Fourth Proportional to 405,437.41, 559,592.45 and 235,769.41

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Solution

The fourth proportional to 405,437.41, 559,592.45 and 235,769.41 is: 325,413.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,437.41 : 559,592.45 = 235,769.41 : x
  2. Step 2: Convert to fraction form
    405,437.41/559,592.45 = 235,769.41/x
  3. Step 3: Cross multiply
    405,437.41x = 559,592.45 × 235,769.41
  4. Step 4: Simplify right side
    405,437.41x = 131,934,781,776.96
  5. Step 5: Solve for x
    x = 131,934,781,776.96/405,437.41
  6. Step 6: Final answer
    x = 325,413.44

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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.