Home / 873,759.86-1,310,789.23-400,485.77

Finding the Fourth Proportional to 873,759.86, 1,310,789.23 and 400,485.77

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Solution

The fourth proportional to 873,759.86, 1,310,789.23 and 400,485.77 is: 600,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,759.86 : 1,310,789.23 = 400,485.77 : x
  2. Step 2: Convert to fraction form
    873,759.86/1,310,789.23 = 400,485.77/x
  3. Step 3: Cross multiply
    873,759.86x = 1,310,789.23 × 400,485.77
  4. Step 4: Simplify right side
    873,759.86x = 524,952,433,697.29
  5. Step 5: Solve for x
    x = 524,952,433,697.29/873,759.86
  6. Step 6: Final answer
    x = 600,797.15

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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.