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Finding the Fourth Proportional to 307,291.20, 460,936.80 and 245,083.20

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Solution

The fourth proportional to 307,291.20, 460,936.80 and 245,083.20 is: 367,624.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,291.20 : 460,936.80 = 245,083.20 : x
  2. Step 2: Convert to fraction form
    307,291.20/460,936.80 = 245,083.20/x
  3. Step 3: Cross multiply
    307,291.20x = 460,936.80 × 245,083.20
  4. Step 4: Simplify right side
    307,291.20x = 112,967,865,941.76
  5. Step 5: Solve for x
    x = 112,967,865,941.76/307,291.20
  6. Step 6: Final answer
    x = 367,624.80

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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.