Home / 1,128,519.69-1,692,907.94-409,200.20

Finding the Fourth Proportional to 1,128,519.69, 1,692,907.94 and 409,200.20

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Solution

The fourth proportional to 1,128,519.69, 1,692,907.94 and 409,200.20 is: 613,846.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,519.69 : 1,692,907.94 = 409,200.20 : x
  2. Step 2: Convert to fraction form
    1,128,519.69/1,692,907.94 = 409,200.20/x
  3. Step 3: Cross multiply
    1,128,519.69x = 1,692,907.94 × 409,200.20
  4. Step 4: Simplify right side
    1,128,519.69x = 692,738,267,629.59
  5. Step 5: Solve for x
    x = 692,738,267,629.59/1,128,519.69
  6. Step 6: Final answer
    x = 613,846.86

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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.