Home / 512,520,670,520.35-768,242,850,484.80-172,441,782,193.96

Finding the Fourth Proportional to 512,520,670,520.35, 768,242,850,484.80 and 172,441,782,193.96

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Solution

The fourth proportional to 512,520,670,520.35, 768,242,850,484.80 and 172,441,782,193.96 is: 258,481,606,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,520,670,520.35 : 768,242,850,484.80 = 172,441,782,193.96 : x
  2. Step 2: Convert to fraction form
    512,520,670,520.35/768,242,850,484.80 = 172,441,782,193.96/x
  3. Step 3: Cross multiply
    512,520,670,520.35x = 768,242,850,484.80 × 172,441,782,193.96
  4. Step 4: Simplify right side
    512,520,670,520.35x = 132,477,166,295,366,854,770,688
  5. Step 5: Solve for x
    x = 132,477,166,295,366,854,770,688/512,520,670,520.35
  6. Step 6: Final answer
    x = 258,481,606,528.90

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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.