Home / 505,583.08-757,511.45-278,069.14

Finding the Fourth Proportional to 505,583.08, 757,511.45 and 278,069.14

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Solution

The fourth proportional to 505,583.08, 757,511.45 and 278,069.14 is: 416,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,583.08 : 757,511.45 = 278,069.14 : x
  2. Step 2: Convert to fraction form
    505,583.08/757,511.45 = 278,069.14/x
  3. Step 3: Cross multiply
    505,583.08x = 757,511.45 × 278,069.14
  4. Step 4: Simplify right side
    505,583.08x = 210,640,557,441.65
  5. Step 5: Solve for x
    x = 210,640,557,441.65/505,583.08
  6. Step 6: Final answer
    x = 416,628.97

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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.