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Finding the Fourth Proportional to 446,765.60, 670,267.20 and 193,937.60

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Solution

The fourth proportional to 446,765.60, 670,267.20 and 193,937.60 is: 290,957.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,765.60 : 670,267.20 = 193,937.60 : x
  2. Step 2: Convert to fraction form
    446,765.60/670,267.20 = 193,937.60/x
  3. Step 3: Cross multiply
    446,765.60x = 670,267.20 × 193,937.60
  4. Step 4: Simplify right side
    446,765.60x = 129,990,012,126.72
  5. Step 5: Solve for x
    x = 129,990,012,126.72/446,765.60
  6. Step 6: Final answer
    x = 290,957.97

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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.