Home / 1,173,153.78-1,618,952.19-636,609.78

Finding the Fourth Proportional to 1,173,153.78, 1,618,952.19 and 636,609.78

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Solution

The fourth proportional to 1,173,153.78, 1,618,952.19 and 636,609.78 is: 878,521.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,153.78 : 1,618,952.19 = 636,609.78 : x
  2. Step 2: Convert to fraction form
    1,173,153.78/1,618,952.19 = 636,609.78/x
  3. Step 3: Cross multiply
    1,173,153.78x = 1,618,952.19 × 636,609.78
  4. Step 4: Simplify right side
    1,173,153.78x = 1,030,640,797,506.42
  5. Step 5: Solve for x
    x = 1,030,640,797,506.42/1,173,153.78
  6. Step 6: Final answer
    x = 878,521.48

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Double scale
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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.