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Finding the Fourth Proportional to 545,488.48, 752,791.24 and 300,491.02

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Solution

The fourth proportional to 545,488.48, 752,791.24 and 300,491.02 is: 414,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,488.48 : 752,791.24 = 300,491.02 : x
  2. Step 2: Convert to fraction form
    545,488.48/752,791.24 = 300,491.02/x
  3. Step 3: Cross multiply
    545,488.48x = 752,791.24 × 300,491.02
  4. Step 4: Simplify right side
    545,488.48x = 226,207,007,554.67
  5. Step 5: Solve for x
    x = 226,207,007,554.67/545,488.48
  6. Step 6: Final answer
    x = 414,687.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.