Home / 496,708.27-685,515.77-278,952.73

Finding the Fourth Proportional to 496,708.27, 685,515.77 and 278,952.73

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Solution

The fourth proportional to 496,708.27, 685,515.77 and 278,952.73 is: 384,987.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,708.27 : 685,515.77 = 278,952.73 : x
  2. Step 2: Convert to fraction form
    496,708.27/685,515.77 = 278,952.73/x
  3. Step 3: Cross multiply
    496,708.27x = 685,515.77 × 278,952.73
  4. Step 4: Simplify right side
    496,708.27x = 191,226,495,499.55
  5. Step 5: Solve for x
    x = 191,226,495,499.55/496,708.27
  6. Step 6: Final answer
    x = 384,987.54

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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.