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Finding the Fourth Proportional to 496,707.27, 685,514.39 and 278,951.73

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Solution

The fourth proportional to 496,707.27, 685,514.39 and 278,951.73 is: 384,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,707.27 : 685,514.39 = 278,951.73 : x
  2. Step 2: Convert to fraction form
    496,707.27/685,514.39 = 278,951.73/x
  3. Step 3: Cross multiply
    496,707.27x = 685,514.39 × 278,951.73
  4. Step 4: Simplify right side
    496,707.27x = 191,225,423,635.64
  5. Step 5: Solve for x
    x = 191,225,423,635.64/496,707.27
  6. Step 6: Final answer
    x = 384,986.16

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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.