Home / 1,216,383.30-1,678,541.13-672,487.34

Finding the Fourth Proportional to 1,216,383.30, 1,678,541.13 and 672,487.34

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Solution

The fourth proportional to 1,216,383.30, 1,678,541.13 and 672,487.34 is: 927,995.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,383.30 : 1,678,541.13 = 672,487.34 : x
  2. Step 2: Convert to fraction form
    1,216,383.30/1,678,541.13 = 672,487.34/x
  3. Step 3: Cross multiply
    1,216,383.30x = 1,678,541.13 × 672,487.34
  4. Step 4: Simplify right side
    1,216,383.30x = 1,128,797,651,201.59
  5. Step 5: Solve for x
    x = 1,128,797,651,201.59/1,216,383.30
  6. Step 6: Final answer
    x = 927,995.03

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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.