Home / 1,086,400,714.80-1,629,601,072.20-396,330,481.20

Finding the Fourth Proportional to 1,086,400,714.80, 1,629,601,072.20 and 396,330,481.20

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Solution

The fourth proportional to 1,086,400,714.80, 1,629,601,072.20 and 396,330,481.20 is: 594,495,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,400,714.80 : 1,629,601,072.20 = 396,330,481.20 : x
  2. Step 2: Convert to fraction form
    1,086,400,714.80/1,629,601,072.20 = 396,330,481.20/x
  3. Step 3: Cross multiply
    1,086,400,714.80x = 1,629,601,072.20 × 396,330,481.20
  4. Step 4: Simplify right side
    1,086,400,714.80x = 645,860,577,109,061,888
  5. Step 5: Solve for x
    x = 645,860,577,109,061,888/1,086,400,714.80
  6. Step 6: Final answer
    x = 594,495,721.80

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Double scale
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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.