Home / 1,409,765.64-1,945,424.46-765,172.11

Finding the Fourth Proportional to 1,409,765.64, 1,945,424.46 and 765,172.11

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Solution

The fourth proportional to 1,409,765.64, 1,945,424.46 and 765,172.11 is: 1,055,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,765.64 : 1,945,424.46 = 765,172.11 : x
  2. Step 2: Convert to fraction form
    1,409,765.64/1,945,424.46 = 765,172.11/x
  3. Step 3: Cross multiply
    1,409,765.64x = 1,945,424.46 × 765,172.11
  4. Step 4: Simplify right side
    1,409,765.64x = 1,488,584,538,903.81
  5. Step 5: Solve for x
    x = 1,488,584,538,903.81/1,409,765.64
  6. Step 6: Final answer
    x = 1,055,909.22

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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.