Home / 638,319.24-957,620.96-278,548.16

Finding the Fourth Proportional to 638,319.24, 957,620.96 and 278,548.16

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Solution

The fourth proportional to 638,319.24, 957,620.96 and 278,548.16 is: 417,884.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,319.24 : 957,620.96 = 278,548.16 : x
  2. Step 2: Convert to fraction form
    638,319.24/957,620.96 = 278,548.16/x
  3. Step 3: Cross multiply
    638,319.24x = 957,620.96 × 278,548.16
  4. Step 4: Simplify right side
    638,319.24x = 266,743,556,385.43
  5. Step 5: Solve for x
    x = 266,743,556,385.43/638,319.24
  6. Step 6: Final answer
    x = 417,884.25

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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.