Home / 1,086,645.40-1,628,801.70-412,466.20

Finding the Fourth Proportional to 1,086,645.40, 1,628,801.70 and 412,466.20

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Solution

The fourth proportional to 1,086,645.40, 1,628,801.70 and 412,466.20 is: 618,256.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,645.40 : 1,628,801.70 = 412,466.20 : x
  2. Step 2: Convert to fraction form
    1,086,645.40/1,628,801.70 = 412,466.20/x
  3. Step 3: Cross multiply
    1,086,645.40x = 1,628,801.70 × 412,466.20
  4. Step 4: Simplify right side
    1,086,645.40x = 671,825,647,752.54
  5. Step 5: Solve for x
    x = 671,825,647,752.54/1,086,645.40
  6. Step 6: Final answer
    x = 618,256.56

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.