Home / 1,261,277.44-1,890,273.28-512,448

Finding the Fourth Proportional to 1,261,277.44, 1,890,273.28 and 512,448

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Solution

The fourth proportional to 1,261,277.44, 1,890,273.28 and 512,448 is: 768,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,277.44 : 1,890,273.28 = 512,448 : x
  2. Step 2: Convert to fraction form
    1,261,277.44/1,890,273.28 = 512,448/x
  3. Step 3: Cross multiply
    1,261,277.44x = 1,890,273.28 × 512,448
  4. Step 4: Simplify right side
    1,261,277.44x = 968,666,761,789.44
  5. Step 5: Solve for x
    x = 968,666,761,789.44/1,261,277.44
  6. Step 6: Final answer
    x = 768,004.51

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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.