Home / 1,383,443.12-1,909,577.76-810,669.44

Finding the Fourth Proportional to 1,383,443.12, 1,909,577.76 and 810,669.44

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Solution

The fourth proportional to 1,383,443.12, 1,909,577.76 and 810,669.44 is: 1,118,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,443.12 : 1,909,577.76 = 810,669.44 : x
  2. Step 2: Convert to fraction form
    1,383,443.12/1,909,577.76 = 810,669.44/x
  3. Step 3: Cross multiply
    1,383,443.12x = 1,909,577.76 × 810,669.44
  4. Step 4: Simplify right side
    1,383,443.12x = 1,548,036,333,335.65
  5. Step 5: Solve for x
    x = 1,548,036,333,335.65/1,383,443.12
  6. Step 6: Final answer
    x = 1,118,973.60

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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.