Home / 640,764.53-961,004.26-185,256.30

Finding the Fourth Proportional to 640,764.53, 961,004.26 and 185,256.30

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Solution

The fourth proportional to 640,764.53, 961,004.26 and 185,256.30 is: 277,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,764.53 : 961,004.26 = 185,256.30 : x
  2. Step 2: Convert to fraction form
    640,764.53/961,004.26 = 185,256.30/x
  3. Step 3: Cross multiply
    640,764.53x = 961,004.26 × 185,256.30
  4. Step 4: Simplify right side
    640,764.53x = 178,032,093,491.84
  5. Step 5: Solve for x
    x = 178,032,093,491.84/640,764.53
  6. Step 6: Final answer
    x = 277,843.24

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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.