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Finding the Fourth Proportional to 393,589.02, 543,075.93 and 264,713.16

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Solution

The fourth proportional to 393,589.02, 543,075.93 and 264,713.16 is: 365,252.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,589.02 : 543,075.93 = 264,713.16 : x
  2. Step 2: Convert to fraction form
    393,589.02/543,075.93 = 264,713.16/x
  3. Step 3: Cross multiply
    393,589.02x = 543,075.93 × 264,713.16
  4. Step 4: Simplify right side
    393,589.02x = 143,759,345,550.24
  5. Step 5: Solve for x
    x = 143,759,345,550.24/393,589.02
  6. Step 6: Final answer
    x = 365,252.43

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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.