Home / 1,216,655.84-1,678,995.92-672,828.20

Finding the Fourth Proportional to 1,216,655.84, 1,678,995.92 and 672,828.20

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Solution

The fourth proportional to 1,216,655.84, 1,678,995.92 and 672,828.20 is: 928,508.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,655.84 : 1,678,995.92 = 672,828.20 : x
  2. Step 2: Convert to fraction form
    1,216,655.84/1,678,995.92 = 672,828.20/x
  3. Step 3: Cross multiply
    1,216,655.84x = 1,678,995.92 × 672,828.20
  4. Step 4: Simplify right side
    1,216,655.84x = 1,129,675,802,660.94
  5. Step 5: Solve for x
    x = 1,129,675,802,660.94/1,216,655.84
  6. Step 6: Final answer
    x = 928,508.92

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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.