Home / 919,512.28-1,377,475.07-518,941.36

Finding the Fourth Proportional to 919,512.28, 1,377,475.07 and 518,941.36

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Solution

The fourth proportional to 919,512.28, 1,377,475.07 and 518,941.36 is: 777,399.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,512.28 : 1,377,475.07 = 518,941.36 : x
  2. Step 2: Convert to fraction form
    919,512.28/1,377,475.07 = 518,941.36/x
  3. Step 3: Cross multiply
    919,512.28x = 1,377,475.07 × 518,941.36
  4. Step 4: Simplify right side
    919,512.28x = 714,828,786,191.90
  5. Step 5: Solve for x
    x = 714,828,786,191.90/919,512.28
  6. Step 6: Final answer
    x = 777,399.93

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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.