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Finding the Fourth Proportional to 449,081.80, 673,622.70 and 307,364.20

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Solution

The fourth proportional to 449,081.80, 673,622.70 and 307,364.20 is: 461,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,081.80 : 673,622.70 = 307,364.20 : x
  2. Step 2: Convert to fraction form
    449,081.80/673,622.70 = 307,364.20/x
  3. Step 3: Cross multiply
    449,081.80x = 673,622.70 × 307,364.20
  4. Step 4: Simplify right side
    449,081.80x = 207,047,502,287.34
  5. Step 5: Solve for x
    x = 207,047,502,287.34/449,081.80
  6. Step 6: Final answer
    x = 461,046.30

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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.