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Finding the Fourth Proportional to 446,892.80, 670,339.20 and 414,087.80

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Solution

The fourth proportional to 446,892.80, 670,339.20 and 414,087.80 is: 621,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,892.80 : 670,339.20 = 414,087.80 : x
  2. Step 2: Convert to fraction form
    446,892.80/670,339.20 = 414,087.80/x
  3. Step 3: Cross multiply
    446,892.80x = 670,339.20 × 414,087.80
  4. Step 4: Simplify right side
    446,892.80x = 277,579,284,581.76
  5. Step 5: Solve for x
    x = 277,579,284,581.76/446,892.80
  6. Step 6: Final answer
    x = 621,131.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.