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Finding the Fourth Proportional to 362,585.70, 543,878.55 and 308,931.30

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Solution

The fourth proportional to 362,585.70, 543,878.55 and 308,931.30 is: 463,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,585.70 : 543,878.55 = 308,931.30 : x
  2. Step 2: Convert to fraction form
    362,585.70/543,878.55 = 308,931.30/x
  3. Step 3: Cross multiply
    362,585.70x = 543,878.55 × 308,931.30
  4. Step 4: Simplify right side
    362,585.70x = 168,021,107,493.62
  5. Step 5: Solve for x
    x = 168,021,107,493.62/362,585.70
  6. Step 6: Final answer
    x = 463,396.95

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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.