Home / 1,150,189.51-1,587,310.10-640,891.75

Finding the Fourth Proportional to 1,150,189.51, 1,587,310.10 and 640,891.75

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Solution

The fourth proportional to 1,150,189.51, 1,587,310.10 and 640,891.75 is: 884,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150,189.51 : 1,587,310.10 = 640,891.75 : x
  2. Step 2: Convert to fraction form
    1,150,189.51/1,587,310.10 = 640,891.75/x
  3. Step 3: Cross multiply
    1,150,189.51x = 1,587,310.10 × 640,891.75
  4. Step 4: Simplify right side
    1,150,189.51x = 1,017,293,944,577.22
  5. Step 5: Solve for x
    x = 1,017,293,944,577.22/1,150,189.51
  6. Step 6: Final answer
    x = 884,457.68

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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.