Home / 505,589.58-757,521.19-278,075.64

Finding the Fourth Proportional to 505,589.58, 757,521.19 and 278,075.64

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Solution

The fourth proportional to 505,589.58, 757,521.19 and 278,075.64 is: 416,638.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,589.58 : 757,521.19 = 278,075.64 : x
  2. Step 2: Convert to fraction form
    505,589.58/757,521.19 = 278,075.64/x
  3. Step 3: Cross multiply
    505,589.58x = 757,521.19 × 278,075.64
  4. Step 4: Simplify right side
    505,589.58x = 210,648,189,722.81
  5. Step 5: Solve for x
    x = 210,648,189,722.81/505,589.58
  6. Step 6: Final answer
    x = 416,638.71

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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.