Home / 1,409,781.81-1,945,500.86-765,202.15

Finding the Fourth Proportional to 1,409,781.81, 1,945,500.86 and 765,202.15

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Solution

The fourth proportional to 1,409,781.81, 1,945,500.86 and 765,202.15 is: 1,055,980.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,781.81 : 1,945,500.86 = 765,202.15 : x
  2. Step 2: Convert to fraction form
    1,409,781.81/1,945,500.86 = 765,202.15/x
  3. Step 3: Cross multiply
    1,409,781.81x = 1,945,500.86 × 765,202.15
  4. Step 4: Simplify right side
    1,409,781.81x = 1,488,701,440,898.85
  5. Step 5: Solve for x
    x = 1,488,701,440,898.85/1,409,781.81
  6. Step 6: Final answer
    x = 1,055,980.03

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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.