Home / 1,216,383.68-1,678,579.91-672,505.47

Finding the Fourth Proportional to 1,216,383.68, 1,678,579.91 and 672,505.47

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Solution

The fourth proportional to 1,216,383.68, 1,678,579.91 and 672,505.47 is: 928,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,383.68 : 1,678,579.91 = 672,505.47 : x
  2. Step 2: Convert to fraction form
    1,216,383.68/1,678,579.91 = 672,505.47/x
  3. Step 3: Cross multiply
    1,216,383.68x = 1,678,579.91 × 672,505.47
  4. Step 4: Simplify right side
    1,216,383.68x = 1,128,854,170,466.48
  5. Step 5: Solve for x
    x = 1,128,854,170,466.48/1,216,383.68
  6. Step 6: Final answer
    x = 928,041.20

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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.