Home / 1,389,410.59-1,917,345.43-769,243.41

Finding the Fourth Proportional to 1,389,410.59, 1,917,345.43 and 769,243.41

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Solution

The fourth proportional to 1,389,410.59, 1,917,345.43 and 769,243.41 is: 1,061,533.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,410.59 : 1,917,345.43 = 769,243.41 : x
  2. Step 2: Convert to fraction form
    1,389,410.59/1,917,345.43 = 769,243.41/x
  3. Step 3: Cross multiply
    1,389,410.59x = 1,917,345.43 × 769,243.41
  4. Step 4: Simplify right side
    1,389,410.59x = 1,474,905,332,290.14
  5. Step 5: Solve for x
    x = 1,474,905,332,290.14/1,389,410.59
  6. Step 6: Final answer
    x = 1,061,533.10

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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.