Home / 612,556.44-845,534.34-419,079.84

Finding the Fourth Proportional to 612,556.44, 845,534.34 and 419,079.84

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Solution

The fourth proportional to 612,556.44, 845,534.34 and 419,079.84 is: 578,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,556.44 : 845,534.34 = 419,079.84 : x
  2. Step 2: Convert to fraction form
    612,556.44/845,534.34 = 419,079.84/x
  3. Step 3: Cross multiply
    612,556.44x = 845,534.34 × 419,079.84
  4. Step 4: Simplify right side
    612,556.44x = 354,346,395,921.71
  5. Step 5: Solve for x
    x = 354,346,395,921.71/612,556.44
  6. Step 6: Final answer
    x = 578,471.42

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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.