Home / 1,113,782.70-1,670,672.16-403,809.60

Finding the Fourth Proportional to 1,113,782.70, 1,670,672.16 and 403,809.60

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Solution

The fourth proportional to 1,113,782.70, 1,670,672.16 and 403,809.60 is: 605,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,782.70 : 1,670,672.16 = 403,809.60 : x
  2. Step 2: Convert to fraction form
    1,113,782.70/1,670,672.16 = 403,809.60/x
  3. Step 3: Cross multiply
    1,113,782.70x = 1,670,672.16 × 403,809.60
  4. Step 4: Simplify right side
    1,113,782.70x = 674,633,456,660.74
  5. Step 5: Solve for x
    x = 674,633,456,660.74/1,113,782.70
  6. Step 6: Final answer
    x = 605,713.71

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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.