Home / 826,760.21-1,240,152.77-287,033.62

Finding the Fourth Proportional to 826,760.21, 1,240,152.77 and 287,033.62

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Solution

The fourth proportional to 826,760.21, 1,240,152.77 and 287,033.62 is: 430,554.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,760.21 : 1,240,152.77 = 287,033.62 : x
  2. Step 2: Convert to fraction form
    826,760.21/1,240,152.77 = 287,033.62/x
  3. Step 3: Cross multiply
    826,760.21x = 1,240,152.77 × 287,033.62
  4. Step 4: Simplify right side
    826,760.21x = 355,965,538,926.13
  5. Step 5: Solve for x
    x = 355,965,538,926.13/826,760.21
  6. Step 6: Final answer
    x = 430,554.75

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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.