Home / 949,178.72-1,309,849.13-519,450.23

Finding the Fourth Proportional to 949,178.72, 1,309,849.13 and 519,450.23

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Solution

The fourth proportional to 949,178.72, 1,309,849.13 and 519,450.23 is: 716,831.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,178.72 : 1,309,849.13 = 519,450.23 : x
  2. Step 2: Convert to fraction form
    949,178.72/1,309,849.13 = 519,450.23/x
  3. Step 3: Cross multiply
    949,178.72x = 1,309,849.13 × 519,450.23
  4. Step 4: Simplify right side
    949,178.72x = 680,401,422,697.30
  5. Step 5: Solve for x
    x = 680,401,422,697.30/949,178.72
  6. Step 6: Final answer
    x = 716,831.73

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1.5x scale

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.