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Finding the Fourth Proportional to 362,148.30, 543,222.45 and 328,322.70

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Solution

The fourth proportional to 362,148.30, 543,222.45 and 328,322.70 is: 492,484.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,148.30 : 543,222.45 = 328,322.70 : x
  2. Step 2: Convert to fraction form
    362,148.30/543,222.45 = 328,322.70/x
  3. Step 3: Cross multiply
    362,148.30x = 543,222.45 × 328,322.70
  4. Step 4: Simplify right side
    362,148.30x = 178,352,261,484.62
  5. Step 5: Solve for x
    x = 178,352,261,484.62/362,148.30
  6. Step 6: Final answer
    x = 492,484.05

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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.