Home / 1,216,505.20-1,678,747.26-672,626.56

Finding the Fourth Proportional to 1,216,505.20, 1,678,747.26 and 672,626.56

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Solution

The fourth proportional to 1,216,505.20, 1,678,747.26 and 672,626.56 is: 928,208.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,505.20 : 1,678,747.26 = 672,626.56 : x
  2. Step 2: Convert to fraction form
    1,216,505.20/1,678,747.26 = 672,626.56/x
  3. Step 3: Cross multiply
    1,216,505.20x = 1,678,747.26 × 672,626.56
  4. Step 4: Simplify right side
    1,216,505.20x = 1,129,169,994,603.23
  5. Step 5: Solve for x
    x = 1,129,169,994,603.23/1,216,505.20
  6. Step 6: Final answer
    x = 928,208.11

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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.