Home / 939,578.60-1,408,908.63-655,405.29

Finding the Fourth Proportional to 939,578.60, 1,408,908.63 and 655,405.29

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Solution

The fourth proportional to 939,578.60, 1,408,908.63 and 655,405.29 is: 982,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,578.60 : 1,408,908.63 = 655,405.29 : x
  2. Step 2: Convert to fraction form
    939,578.60/1,408,908.63 = 655,405.29/x
  3. Step 3: Cross multiply
    939,578.60x = 1,408,908.63 × 655,405.29
  4. Step 4: Simplify right side
    939,578.60x = 923,406,161,487.48
  5. Step 5: Solve for x
    x = 923,406,161,487.48/939,578.60
  6. Step 6: Final answer
    x = 982,787.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.