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Finding the Fourth Proportional to 357,721.36, 536,598.33 and 253,007.80

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Solution

The fourth proportional to 357,721.36, 536,598.33 and 253,007.80 is: 379,523.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,721.36 : 536,598.33 = 253,007.80 : x
  2. Step 2: Convert to fraction form
    357,721.36/536,598.33 = 253,007.80/x
  3. Step 3: Cross multiply
    357,721.36x = 536,598.33 × 253,007.80
  4. Step 4: Simplify right side
    357,721.36x = 135,763,562,956.97
  5. Step 5: Solve for x
    x = 135,763,562,956.97/357,721.36
  6. Step 6: Final answer
    x = 379,523.22

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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.