Home / 925,136.36-1,387,908.70-393,112.16

Finding the Fourth Proportional to 925,136.36, 1,387,908.70 and 393,112.16

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Solution

The fourth proportional to 925,136.36, 1,387,908.70 and 393,112.16 is: 589,754.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,136.36 : 1,387,908.70 = 393,112.16 : x
  2. Step 2: Convert to fraction form
    925,136.36/1,387,908.70 = 393,112.16/x
  3. Step 3: Cross multiply
    925,136.36x = 1,387,908.70 × 393,112.16
  4. Step 4: Simplify right side
    925,136.36x = 545,603,786,939.79
  5. Step 5: Solve for x
    x = 545,603,786,939.79/925,136.36
  6. Step 6: Final answer
    x = 589,754.99

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1.5x scale

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.