Home / 623,682.09-860,814.81-394,093.62

Finding the Fourth Proportional to 623,682.09, 860,814.81 and 394,093.62

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Solution

The fourth proportional to 623,682.09, 860,814.81 and 394,093.62 is: 543,933.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,682.09 : 860,814.81 = 394,093.62 : x
  2. Step 2: Convert to fraction form
    623,682.09/860,814.81 = 394,093.62/x
  3. Step 3: Cross multiply
    623,682.09x = 860,814.81 × 394,093.62
  4. Step 4: Simplify right side
    623,682.09x = 339,241,624,622.51
  5. Step 5: Solve for x
    x = 339,241,624,622.51/623,682.09
  6. Step 6: Final answer
    x = 543,933.57

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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.