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Finding the Fourth Proportional to 505,589.08, 757,520.44 and 278,075.14

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Solution

The fourth proportional to 505,589.08, 757,520.44 and 278,075.14 is: 416,637.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,589.08 : 757,520.44 = 278,075.14 : x
  2. Step 2: Convert to fraction form
    505,589.08/757,520.44 = 278,075.14/x
  3. Step 3: Cross multiply
    505,589.08x = 757,520.44 × 278,075.14
  4. Step 4: Simplify right side
    505,589.08x = 210,647,602,405.86
  5. Step 5: Solve for x
    x = 210,647,602,405.86/505,589.08
  6. Step 6: Final answer
    x = 416,637.96

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1.5x scale

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.