Home / 800,130.86-1,104,169.96-455,987.27

Finding the Fourth Proportional to 800,130.86, 1,104,169.96 and 455,987.27

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Solution

The fourth proportional to 800,130.86, 1,104,169.96 and 455,987.27 is: 629,256.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,130.86 : 1,104,169.96 = 455,987.27 : x
  2. Step 2: Convert to fraction form
    800,130.86/1,104,169.96 = 455,987.27/x
  3. Step 3: Cross multiply
    800,130.86x = 1,104,169.96 × 455,987.27
  4. Step 4: Simplify right side
    800,130.86x = 503,487,449,006.82
  5. Step 5: Solve for x
    x = 503,487,449,006.82/800,130.86
  6. Step 6: Final answer
    x = 629,256.38

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Double scale
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1.5x scale

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.