Home / 945,677.40-1,304,986.86-515,954.04

Finding the Fourth Proportional to 945,677.40, 1,304,986.86 and 515,954.04

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Solution

The fourth proportional to 945,677.40, 1,304,986.86 and 515,954.04 is: 711,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,677.40 : 1,304,986.86 = 515,954.04 : x
  2. Step 2: Convert to fraction form
    945,677.40/1,304,986.86 = 515,954.04/x
  3. Step 3: Cross multiply
    945,677.40x = 1,304,986.86 × 515,954.04
  4. Step 4: Simplify right side
    945,677.40x = 673,313,242,563.91
  5. Step 5: Solve for x
    x = 673,313,242,563.91/945,677.40
  6. Step 6: Final answer
    x = 711,990.41

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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.