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Finding the Fourth Proportional to 318,762.76, 439,892.60 and 175,522.44

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Solution

The fourth proportional to 318,762.76, 439,892.60 and 175,522.44 is: 242,220.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,762.76 : 439,892.60 = 175,522.44 : x
  2. Step 2: Convert to fraction form
    318,762.76/439,892.60 = 175,522.44/x
  3. Step 3: Cross multiply
    318,762.76x = 439,892.60 × 175,522.44
  4. Step 4: Simplify right side
    318,762.76x = 77,211,022,489.94
  5. Step 5: Solve for x
    x = 77,211,022,489.94/318,762.76
  6. Step 6: Final answer
    x = 242,220.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.