Home / 1,173,176.88-1,618,984.09-636,632.88

Finding the Fourth Proportional to 1,173,176.88, 1,618,984.09 and 636,632.88

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Solution

The fourth proportional to 1,173,176.88, 1,618,984.09 and 636,632.88 is: 878,553.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,176.88 : 1,618,984.09 = 636,632.88 : x
  2. Step 2: Convert to fraction form
    1,173,176.88/1,618,984.09 = 636,632.88/x
  3. Step 3: Cross multiply
    1,173,176.88x = 1,618,984.09 × 636,632.88
  4. Step 4: Simplify right side
    1,173,176.88x = 1,030,698,503,890.88
  5. Step 5: Solve for x
    x = 1,030,698,503,890.88/1,173,176.88
  6. Step 6: Final answer
    x = 878,553.37

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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.