Home / 919,893.36-1,269,452.40-517,485.36

Finding the Fourth Proportional to 919,893.36, 1,269,452.40 and 517,485.36

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Solution

The fourth proportional to 919,893.36, 1,269,452.40 and 517,485.36 is: 714,129.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,893.36 : 1,269,452.40 = 517,485.36 : x
  2. Step 2: Convert to fraction form
    919,893.36/1,269,452.40 = 517,485.36/x
  3. Step 3: Cross multiply
    919,893.36x = 1,269,452.40 × 517,485.36
  4. Step 4: Simplify right side
    919,893.36x = 656,923,032,216.86
  5. Step 5: Solve for x
    x = 656,923,032,216.86/919,893.36
  6. Step 6: Final answer
    x = 714,129.55

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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.