Home / 821,405.44-1,133,515.63-453,876.74

Finding the Fourth Proportional to 821,405.44, 1,133,515.63 and 453,876.74

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Solution

The fourth proportional to 821,405.44, 1,133,515.63 and 453,876.74 is: 626,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,405.44 : 1,133,515.63 = 453,876.74 : x
  2. Step 2: Convert to fraction form
    821,405.44/1,133,515.63 = 453,876.74/x
  3. Step 3: Cross multiply
    821,405.44x = 1,133,515.63 × 453,876.74
  4. Step 4: Simplify right side
    821,405.44x = 514,476,378,883.45
  5. Step 5: Solve for x
    x = 514,476,378,883.45/821,405.44
  6. Step 6: Final answer
    x = 626,336.71

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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.