Home / 1,409,721.29-1,945,417.60-765,141.77

Finding the Fourth Proportional to 1,409,721.29, 1,945,417.60 and 765,141.77

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Solution

The fourth proportional to 1,409,721.29, 1,945,417.60 and 765,141.77 is: 1,055,896.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,721.29 : 1,945,417.60 = 765,141.77 : x
  2. Step 2: Convert to fraction form
    1,409,721.29/1,945,417.60 = 765,141.77/x
  3. Step 3: Cross multiply
    1,409,721.29x = 1,945,417.60 × 765,141.77
  4. Step 4: Simplify right side
    1,409,721.29x = 1,488,520,266,201.64
  5. Step 5: Solve for x
    x = 1,488,520,266,201.64/1,409,721.29
  6. Step 6: Final answer
    x = 1,055,896.85

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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.