Home / 450,091.35-621,184.82-259,112.79

Finding the Fourth Proportional to 450,091.35, 621,184.82 and 259,112.79

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Solution

The fourth proportional to 450,091.35, 621,184.82 and 259,112.79 is: 357,609.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,091.35 : 621,184.82 = 259,112.79 : x
  2. Step 2: Convert to fraction form
    450,091.35/621,184.82 = 259,112.79/x
  3. Step 3: Cross multiply
    450,091.35x = 621,184.82 × 259,112.79
  4. Step 4: Simplify right side
    450,091.35x = 160,956,930,520.28
  5. Step 5: Solve for x
    x = 160,956,930,520.28/450,091.35
  6. Step 6: Final answer
    x = 357,609.47

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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.