Home / 919,976.38-1,269,567.32-512,069.45

Finding the Fourth Proportional to 919,976.38, 1,269,567.32 and 512,069.45

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Solution

The fourth proportional to 919,976.38, 1,269,567.32 and 512,069.45 is: 706,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,976.38 : 1,269,567.32 = 512,069.45 : x
  2. Step 2: Convert to fraction form
    919,976.38/1,269,567.32 = 512,069.45/x
  3. Step 3: Cross multiply
    919,976.38x = 1,269,567.32 × 512,069.45
  4. Step 4: Simplify right side
    919,976.38x = 650,106,633,262.58
  5. Step 5: Solve for x
    x = 650,106,633,262.58/919,976.38
  6. Step 6: Final answer
    x = 706,655.79

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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.