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Finding the Fourth Proportional to 357,720.86, 536,597.58 and 253,007.30

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Solution

The fourth proportional to 357,720.86, 536,597.58 and 253,007.30 is: 379,522.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,720.86 : 536,597.58 = 253,007.30 : x
  2. Step 2: Convert to fraction form
    357,720.86/536,597.58 = 253,007.30/x
  3. Step 3: Cross multiply
    357,720.86x = 536,597.58 × 253,007.30
  4. Step 4: Simplify right side
    357,720.86x = 135,763,104,902.33
  5. Step 5: Solve for x
    x = 135,763,104,902.33/357,720.86
  6. Step 6: Final answer
    x = 379,522.47

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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.