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Finding the Fourth Proportional to 460,840.80, 691,698.60 and 283,693.80

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Solution

The fourth proportional to 460,840.80, 691,698.60 and 283,693.80 is: 425,809.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,840.80 : 691,698.60 = 283,693.80 : x
  2. Step 2: Convert to fraction form
    460,840.80/691,698.60 = 283,693.80/x
  3. Step 3: Cross multiply
    460,840.80x = 691,698.60 × 283,693.80
  4. Step 4: Simplify right side
    460,840.80x = 196,230,604,288.68
  5. Step 5: Solve for x
    x = 196,230,604,288.68/460,840.80
  6. Step 6: Final answer
    x = 425,809.96

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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.