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Finding the Fourth Proportional to 362,143.05, 543,214.58 and 359,518.65

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Solution

The fourth proportional to 362,143.05, 543,214.58 and 359,518.65 is: 539,277.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,143.05 : 543,214.58 = 359,518.65 : x
  2. Step 2: Convert to fraction form
    362,143.05/543,214.58 = 359,518.65/x
  3. Step 3: Cross multiply
    362,143.05x = 543,214.58 × 359,518.65
  4. Step 4: Simplify right side
    362,143.05x = 195,295,770,664.32
  5. Step 5: Solve for x
    x = 195,295,770,664.32/362,143.05
  6. Step 6: Final answer
    x = 539,277.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.