Home / 1,409,783.43-1,945,503.12-765,203.76

Finding the Fourth Proportional to 1,409,783.43, 1,945,503.12 and 765,203.76

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Solution

The fourth proportional to 1,409,783.43, 1,945,503.12 and 765,203.76 is: 1,055,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,783.43 : 1,945,503.12 = 765,203.76 : x
  2. Step 2: Convert to fraction form
    1,409,783.43/1,945,503.12 = 765,203.76/x
  3. Step 3: Cross multiply
    1,409,783.43x = 1,945,503.12 × 765,203.76
  4. Step 4: Simplify right side
    1,409,783.43x = 1,488,706,302,515.73
  5. Step 5: Solve for x
    x = 1,488,706,302,515.73/1,409,783.43
  6. Step 6: Final answer
    x = 1,055,982.27

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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.