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Finding the Fourth Proportional to 439,450.92, 606,446.94 and 258,170.40

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Solution

The fourth proportional to 439,450.92, 606,446.94 and 258,170.40 is: 356,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,450.92 : 606,446.94 = 258,170.40 : x
  2. Step 2: Convert to fraction form
    439,450.92/606,446.94 = 258,170.40/x
  3. Step 3: Cross multiply
    439,450.92x = 606,446.94 × 258,170.40
  4. Step 4: Simplify right side
    439,450.92x = 156,566,649,078.58
  5. Step 5: Solve for x
    x = 156,566,649,078.58/439,450.92
  6. Step 6: Final answer
    x = 356,277.90

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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.