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Finding the Fourth Proportional to 333,021.90, 498,548.70 and 220,828.80

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Solution

The fourth proportional to 333,021.90, 498,548.70 and 220,828.80 is: 330,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,021.90 : 498,548.70 = 220,828.80 : x
  2. Step 2: Convert to fraction form
    333,021.90/498,548.70 = 220,828.80/x
  3. Step 3: Cross multiply
    333,021.90x = 498,548.70 × 220,828.80
  4. Step 4: Simplify right side
    333,021.90x = 110,093,911,162.56
  5. Step 5: Solve for x
    x = 110,093,911,162.56/333,021.90
  6. Step 6: Final answer
    x = 330,590.60

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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.