Home / 1,278,109.51-1,763,796.81-705,166.54

Finding the Fourth Proportional to 1,278,109.51, 1,763,796.81 and 705,166.54

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Solution

The fourth proportional to 1,278,109.51, 1,763,796.81 and 705,166.54 is: 973,132.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,109.51 : 1,763,796.81 = 705,166.54 : x
  2. Step 2: Convert to fraction form
    1,278,109.51/1,763,796.81 = 705,166.54/x
  3. Step 3: Cross multiply
    1,278,109.51x = 1,763,796.81 × 705,166.54
  4. Step 4: Simplify right side
    1,278,109.51x = 1,243,770,493,770.74
  5. Step 5: Solve for x
    x = 1,243,770,493,770.74/1,278,109.51
  6. Step 6: Final answer
    x = 973,132.96

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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.