Home / 864,321.62-1,192,732.58-477,128.73

Finding the Fourth Proportional to 864,321.62, 1,192,732.58 and 477,128.73

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Solution

The fourth proportional to 864,321.62, 1,192,732.58 and 477,128.73 is: 658,420.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,321.62 : 1,192,732.58 = 477,128.73 : x
  2. Step 2: Convert to fraction form
    864,321.62/1,192,732.58 = 477,128.73/x
  3. Step 3: Cross multiply
    864,321.62x = 1,192,732.58 × 477,128.73
  4. Step 4: Simplify right side
    864,321.62x = 569,086,980,919.92
  5. Step 5: Solve for x
    x = 569,086,980,919.92/864,321.62
  6. Step 6: Final answer
    x = 658,420.39

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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.