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Finding the Fourth Proportional to 446,885.40, 670,328.10 and 305,167.80

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Solution

The fourth proportional to 446,885.40, 670,328.10 and 305,167.80 is: 457,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,885.40 : 670,328.10 = 305,167.80 : x
  2. Step 2: Convert to fraction form
    446,885.40/670,328.10 = 305,167.80/x
  3. Step 3: Cross multiply
    446,885.40x = 670,328.10 × 305,167.80
  4. Step 4: Simplify right side
    446,885.40x = 204,562,551,555.18
  5. Step 5: Solve for x
    x = 204,562,551,555.18/446,885.40
  6. Step 6: Final answer
    x = 457,751.70

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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.