Home / 785,448.69-1,084,558.37-640,277.25

Finding the Fourth Proportional to 785,448.69, 1,084,558.37 and 640,277.25

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Solution

The fourth proportional to 785,448.69, 1,084,558.37 and 640,277.25 is: 884,103.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,448.69 : 1,084,558.37 = 640,277.25 : x
  2. Step 2: Convert to fraction form
    785,448.69/1,084,558.37 = 640,277.25/x
  3. Step 3: Cross multiply
    785,448.69x = 1,084,558.37 × 640,277.25
  4. Step 4: Simplify right side
    785,448.69x = 694,418,050,608.08
  5. Step 5: Solve for x
    x = 694,418,050,608.08/785,448.69
  6. Step 6: Final answer
    x = 884,103.65

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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.