Home / 939,136.28-1,408,680.92-513,086.00

Finding the Fourth Proportional to 939,136.28, 1,408,680.92 and 513,086.00

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Solution

The fourth proportional to 939,136.28, 1,408,680.92 and 513,086.00 is: 769,616.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,136.28 : 1,408,680.92 = 513,086.00 : x
  2. Step 2: Convert to fraction form
    939,136.28/1,408,680.92 = 513,086.00/x
  3. Step 3: Cross multiply
    939,136.28x = 1,408,680.92 × 513,086.00
  4. Step 4: Simplify right side
    939,136.28x = 722,774,452,758.43
  5. Step 5: Solve for x
    x = 722,774,452,758.43/939,136.28
  6. Step 6: Final answer
    x = 769,616.16

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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.