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Finding the Fourth Proportional to 490,068.80, 733,720.80 and 476,244.80

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Solution

The fourth proportional to 490,068.80, 733,720.80 and 476,244.80 is: 713,023.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,068.80 : 733,720.80 = 476,244.80 : x
  2. Step 2: Convert to fraction form
    490,068.80/733,720.80 = 476,244.80/x
  3. Step 3: Cross multiply
    490,068.80x = 733,720.80 × 476,244.80
  4. Step 4: Simplify right side
    490,068.80x = 349,430,715,651.84
  5. Step 5: Solve for x
    x = 349,430,715,651.84/490,068.80
  6. Step 6: Final answer
    x = 713,023.80

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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.