Home / 806,568,514.90-1,112,769,295.70-488,799,520.56

Finding the Fourth Proportional to 806,568,514.90, 1,112,769,295.70 and 488,799,520.56

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Solution

The fourth proportional to 806,568,514.90, 1,112,769,295.70 and 488,799,520.56 is: 674,364,406.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,568,514.90 : 1,112,769,295.70 = 488,799,520.56 : x
  2. Step 2: Convert to fraction form
    806,568,514.90/1,112,769,295.70 = 488,799,520.56/x
  3. Step 3: Cross multiply
    806,568,514.90x = 1,112,769,295.70 × 488,799,520.56
  4. Step 4: Simplify right side
    806,568,514.90x = 543,921,098,229,604,864
  5. Step 5: Solve for x
    x = 543,921,098,229,604,864/806,568,514.90
  6. Step 6: Final answer
    x = 674,364,406.97

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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.