Home / 925,137.36-1,387,910.20-393,113.16

Finding the Fourth Proportional to 925,137.36, 1,387,910.20 and 393,113.16

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Solution

The fourth proportional to 925,137.36, 1,387,910.20 and 393,113.16 is: 589,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,137.36 : 1,387,910.20 = 393,113.16 : x
  2. Step 2: Convert to fraction form
    925,137.36/1,387,910.20 = 393,113.16/x
  3. Step 3: Cross multiply
    925,137.36x = 1,387,910.20 × 393,113.16
  4. Step 4: Simplify right side
    925,137.36x = 545,605,764,518.23
  5. Step 5: Solve for x
    x = 545,605,764,518.23/925,137.36
  6. Step 6: Final answer
    x = 589,756.49

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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.