Home / 1,214,405-1,675,905.54-670,539.32

Finding the Fourth Proportional to 1,214,405, 1,675,905.54 and 670,539.32

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Solution

The fourth proportional to 1,214,405, 1,675,905.54 and 670,539.32 is: 925,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,405 : 1,675,905.54 = 670,539.32 : x
  2. Step 2: Convert to fraction form
    1,214,405/1,675,905.54 = 670,539.32/x
  3. Step 3: Cross multiply
    1,214,405x = 1,675,905.54 × 670,539.32
  4. Step 4: Simplify right side
    1,214,405x = 1,123,760,561,175.83
  5. Step 5: Solve for x
    x = 1,123,760,561,175.83/1,214,405
  6. Step 6: Final answer
    x = 925,358.97

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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.