Home / 681,107.04-939,927.42-394,793.04

Finding the Fourth Proportional to 681,107.04, 939,927.42 and 394,793.04

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Solution

The fourth proportional to 681,107.04, 939,927.42 and 394,793.04 is: 544,814.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,107.04 : 939,927.42 = 394,793.04 : x
  2. Step 2: Convert to fraction form
    681,107.04/939,927.42 = 394,793.04/x
  3. Step 3: Cross multiply
    681,107.04x = 939,927.42 × 394,793.04
  4. Step 4: Simplify right side
    681,107.04x = 371,076,803,521.16
  5. Step 5: Solve for x
    x = 371,076,803,521.16/681,107.04
  6. Step 6: Final answer
    x = 544,814.22

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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.