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Finding the Fourth Proportional to 617,165.80, 925,287.90 and 336,999.40

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Solution

The fourth proportional to 617,165.80, 925,287.90 and 336,999.40 is: 505,247.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,165.80 : 925,287.90 = 336,999.40 : x
  2. Step 2: Convert to fraction form
    617,165.80/925,287.90 = 336,999.40/x
  3. Step 3: Cross multiply
    617,165.80x = 925,287.90 × 336,999.40
  4. Step 4: Simplify right side
    617,165.80x = 311,821,467,127.26
  5. Step 5: Solve for x
    x = 311,821,467,127.26/617,165.80
  6. Step 6: Final answer
    x = 505,247.48

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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.