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Finding the Fourth Proportional to 441,993.39, 609,790.95 and 289,118.85

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Solution

The fourth proportional to 441,993.39, 609,790.95 and 289,118.85 is: 398,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,993.39 : 609,790.95 = 289,118.85 : x
  2. Step 2: Convert to fraction form
    441,993.39/609,790.95 = 289,118.85/x
  3. Step 3: Cross multiply
    441,993.39x = 609,790.95 × 289,118.85
  4. Step 4: Simplify right side
    441,993.39x = 176,302,058,204.41
  5. Step 5: Solve for x
    x = 176,302,058,204.41/441,993.39
  6. Step 6: Final answer
    x = 398,879.40

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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.