Home / 705,386.80-1,058,074.55-419,181.96

Finding the Fourth Proportional to 705,386.80, 1,058,074.55 and 419,181.96

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Solution

The fourth proportional to 705,386.80, 1,058,074.55 and 419,181.96 is: 628,769.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,386.80 : 1,058,074.55 = 419,181.96 : x
  2. Step 2: Convert to fraction form
    705,386.80/1,058,074.55 = 419,181.96/x
  3. Step 3: Cross multiply
    705,386.80x = 1,058,074.55 × 419,181.96
  4. Step 4: Simplify right side
    705,386.80x = 443,525,760,775.29
  5. Step 5: Solve for x
    x = 443,525,760,775.29/705,386.80
  6. Step 6: Final answer
    x = 628,769.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.