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Finding the Fourth Proportional to 348,571.20, 523,051.20 and 148,857.60

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Solution

The fourth proportional to 348,571.20, 523,051.20 and 148,857.60 is: 223,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,571.20 : 523,051.20 = 148,857.60 : x
  2. Step 2: Convert to fraction form
    348,571.20/523,051.20 = 148,857.60/x
  3. Step 3: Cross multiply
    348,571.20x = 523,051.20 × 148,857.60
  4. Step 4: Simplify right side
    348,571.20x = 77,860,146,309.12
  5. Step 5: Solve for x
    x = 77,860,146,309.12/348,571.20
  6. Step 6: Final answer
    x = 223,369.42

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1.5x scale

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.