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Finding the Fourth Proportional to 347,668.20, 520,846.20 and 324,048.60

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Solution

The fourth proportional to 347,668.20, 520,846.20 and 324,048.60 is: 485,461.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,668.20 : 520,846.20 = 324,048.60 : x
  2. Step 2: Convert to fraction form
    347,668.20/520,846.20 = 324,048.60/x
  3. Step 3: Cross multiply
    347,668.20x = 520,846.20 × 324,048.60
  4. Step 4: Simplify right side
    347,668.20x = 168,779,481,925.32
  5. Step 5: Solve for x
    x = 168,779,481,925.32/347,668.20
  6. Step 6: Final answer
    x = 485,461.37

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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.