Home / 579,413,857.80-869,120,786.70-526,694,910.60

Finding the Fourth Proportional to 579,413,857.80, 869,120,786.70 and 526,694,910.60

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Solution

The fourth proportional to 579,413,857.80, 869,120,786.70 and 526,694,910.60 is: 790,042,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,413,857.80 : 869,120,786.70 = 526,694,910.60 : x
  2. Step 2: Convert to fraction form
    579,413,857.80/869,120,786.70 = 526,694,910.60/x
  3. Step 3: Cross multiply
    579,413,857.80x = 869,120,786.70 × 526,694,910.60
  4. Step 4: Simplify right side
    579,413,857.80x = 457,761,495,051,558,208
  5. Step 5: Solve for x
    x = 457,761,495,051,558,208/579,413,857.80
  6. Step 6: Final answer
    x = 790,042,365.90

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Double scale
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Similar ratio
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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.