Home / 1,409,598.42-1,945,245.78-765,018.66

Finding the Fourth Proportional to 1,409,598.42, 1,945,245.78 and 765,018.66

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Solution

The fourth proportional to 1,409,598.42, 1,945,245.78 and 765,018.66 is: 1,055,725.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,598.42 : 1,945,245.78 = 765,018.66 : x
  2. Step 2: Convert to fraction form
    1,409,598.42/1,945,245.78 = 765,018.66/x
  3. Step 3: Cross multiply
    1,409,598.42x = 1,945,245.78 × 765,018.66
  4. Step 4: Simplify right side
    1,409,598.42x = 1,488,149,319,986.26
  5. Step 5: Solve for x
    x = 1,488,149,319,986.26/1,409,598.42
  6. Step 6: Final answer
    x = 1,055,725.73

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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.