Home / 412,254.20-621,189.37-339,014.84

Finding the Fourth Proportional to 412,254.20, 621,189.37 and 339,014.84

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Solution

The fourth proportional to 412,254.20, 621,189.37 and 339,014.84 is: 510,831.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,254.20 : 621,189.37 = 339,014.84 : x
  2. Step 2: Convert to fraction form
    412,254.20/621,189.37 = 339,014.84/x
  3. Step 3: Cross multiply
    412,254.20x = 621,189.37 × 339,014.84
  4. Step 4: Simplify right side
    412,254.20x = 210,592,412,198.07
  5. Step 5: Solve for x
    x = 210,592,412,198.07/412,254.20
  6. Step 6: Final answer
    x = 510,831.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.