Home / 1,189,134.64-1,640,538.66-679,563.64

Finding the Fourth Proportional to 1,189,134.64, 1,640,538.66 and 679,563.64

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Solution

The fourth proportional to 1,189,134.64, 1,640,538.66 and 679,563.64 is: 937,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,134.64 : 1,640,538.66 = 679,563.64 : x
  2. Step 2: Convert to fraction form
    1,189,134.64/1,640,538.66 = 679,563.64/x
  3. Step 3: Cross multiply
    1,189,134.64x = 1,640,538.66 × 679,563.64
  4. Step 4: Simplify right side
    1,189,134.64x = 1,114,850,423,350.32
  5. Step 5: Solve for x
    x = 1,114,850,423,350.32/1,189,134.64
  6. Step 6: Final answer
    x = 937,530.86

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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.