Home / 1,405,859.63-1,940,095.51-761,279.85

Finding the Fourth Proportional to 1,405,859.63, 1,940,095.51 and 761,279.85

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Solution

The fourth proportional to 1,405,859.63, 1,940,095.51 and 761,279.85 is: 1,050,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,859.63 : 1,940,095.51 = 761,279.85 : x
  2. Step 2: Convert to fraction form
    1,405,859.63/1,940,095.51 = 761,279.85/x
  3. Step 3: Cross multiply
    1,405,859.63x = 1,940,095.51 × 761,279.85
  4. Step 4: Simplify right side
    1,405,859.63x = 1,476,955,619,882.31
  5. Step 5: Solve for x
    x = 1,476,955,619,882.31/1,405,859.63
  6. Step 6: Final answer
    x = 1,050,571.19

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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.