Home / 1,405,870.05-1,940,097.18-761,290.20

Finding the Fourth Proportional to 1,405,870.05, 1,940,097.18 and 761,290.20

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Solution

The fourth proportional to 1,405,870.05, 1,940,097.18 and 761,290.20 is: 1,050,578.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,870.05 : 1,940,097.18 = 761,290.20 : x
  2. Step 2: Convert to fraction form
    1,405,870.05/1,940,097.18 = 761,290.20/x
  3. Step 3: Cross multiply
    1,405,870.05x = 1,940,097.18 × 761,290.20
  4. Step 4: Simplify right side
    1,405,870.05x = 1,476,976,970,181.64
  5. Step 5: Solve for x
    x = 1,476,976,970,181.64/1,405,870.05
  6. Step 6: Final answer
    x = 1,050,578.59

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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.