Home / 785,295.20-1,083,712.64-445,769.12

Finding the Fourth Proportional to 785,295.20, 1,083,712.64 and 445,769.12

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Solution

The fourth proportional to 785,295.20, 1,083,712.64 and 445,769.12 is: 615,164.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,295.20 : 1,083,712.64 = 445,769.12 : x
  2. Step 2: Convert to fraction form
    785,295.20/1,083,712.64 = 445,769.12/x
  3. Step 3: Cross multiply
    785,295.20x = 1,083,712.64 × 445,769.12
  4. Step 4: Simplify right side
    785,295.20x = 483,085,629,865.68
  5. Step 5: Solve for x
    x = 483,085,629,865.68/785,295.20
  6. Step 6: Final answer
    x = 615,164.37

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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.