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Finding the Fourth Proportional to 362,880.87, 543,136.85 and 266,792.63

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Solution

The fourth proportional to 362,880.87, 543,136.85 and 266,792.63 is: 399,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,880.87 : 543,136.85 = 266,792.63 : x
  2. Step 2: Convert to fraction form
    362,880.87/543,136.85 = 266,792.63/x
  3. Step 3: Cross multiply
    362,880.87x = 543,136.85 × 266,792.63
  4. Step 4: Simplify right side
    362,880.87x = 144,904,908,661.42
  5. Step 5: Solve for x
    x = 144,904,908,661.42/362,880.87
  6. Step 6: Final answer
    x = 399,318.13

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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.