Home / 778,556.88-1,074,406.68-439,022.70

Finding the Fourth Proportional to 778,556.88, 1,074,406.68 and 439,022.70

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Solution

The fourth proportional to 778,556.88, 1,074,406.68 and 439,022.70 is: 605,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,556.88 : 1,074,406.68 = 439,022.70 : x
  2. Step 2: Convert to fraction form
    778,556.88/1,074,406.68 = 439,022.70/x
  3. Step 3: Cross multiply
    778,556.88x = 1,074,406.68 × 439,022.70
  4. Step 4: Simplify right side
    778,556.88x = 471,688,921,551.64
  5. Step 5: Solve for x
    x = 471,688,921,551.64/778,556.88
  6. Step 6: Final answer
    x = 605,850.30

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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.