Home / 623,786.40-860,958.63-394,197.57

Finding the Fourth Proportional to 623,786.40, 860,958.63 and 394,197.57

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Solution

The fourth proportional to 623,786.40, 860,958.63 and 394,197.57 is: 544,076.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,786.40 : 860,958.63 = 394,197.57 : x
  2. Step 2: Convert to fraction form
    623,786.40/860,958.63 = 394,197.57/x
  3. Step 3: Cross multiply
    623,786.40x = 860,958.63 × 394,197.57
  4. Step 4: Simplify right side
    623,786.40x = 339,387,799,816.53
  5. Step 5: Solve for x
    x = 339,387,799,816.53/623,786.40
  6. Step 6: Final answer
    x = 544,076.95

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Double scale
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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.