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Finding the Fourth Proportional to 307,117.80, 460,676.70 and 254,629.80

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Solution

The fourth proportional to 307,117.80, 460,676.70 and 254,629.80 is: 381,944.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,117.80 : 460,676.70 = 254,629.80 : x
  2. Step 2: Convert to fraction form
    307,117.80/460,676.70 = 254,629.80/x
  3. Step 3: Cross multiply
    307,117.80x = 460,676.70 × 254,629.80
  4. Step 4: Simplify right side
    307,117.80x = 117,302,015,985.66
  5. Step 5: Solve for x
    x = 117,302,015,985.66/307,117.80
  6. Step 6: Final answer
    x = 381,944.70

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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.