Home / 1,173,150.78-1,618,948.05-636,606.78

Finding the Fourth Proportional to 1,173,150.78, 1,618,948.05 and 636,606.78

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Solution

The fourth proportional to 1,173,150.78, 1,618,948.05 and 636,606.78 is: 878,517.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,150.78 : 1,618,948.05 = 636,606.78 : x
  2. Step 2: Convert to fraction form
    1,173,150.78/1,618,948.05 = 636,606.78/x
  3. Step 3: Cross multiply
    1,173,150.78x = 1,618,948.05 × 636,606.78
  4. Step 4: Simplify right side
    1,173,150.78x = 1,030,633,305,097.78
  5. Step 5: Solve for x
    x = 1,030,633,305,097.78/1,173,150.78
  6. Step 6: Final answer
    x = 878,517.34

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Double scale
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1.5x scale

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.