Home / 455,228.06-628,120.94-261,598.37

Finding the Fourth Proportional to 455,228.06, 628,120.94 and 261,598.37

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Solution

The fourth proportional to 455,228.06, 628,120.94 and 261,598.37 is: 360,951.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,228.06 : 628,120.94 = 261,598.37 : x
  2. Step 2: Convert to fraction form
    455,228.06/628,120.94 = 261,598.37/x
  3. Step 3: Cross multiply
    455,228.06x = 628,120.94 × 261,598.37
  4. Step 4: Simplify right side
    455,228.06x = 164,315,409,618.27
  5. Step 5: Solve for x
    x = 164,315,409,618.27/455,228.06
  6. Step 6: Final answer
    x = 360,951.85

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1.5x scale

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.