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Finding the Fourth Proportional to 603,245.57, 832,270.52 and 385,581.56

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Solution

The fourth proportional to 603,245.57, 832,270.52 and 385,581.56 is: 531,969.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,245.57 : 832,270.52 = 385,581.56 : x
  2. Step 2: Convert to fraction form
    603,245.57/832,270.52 = 385,581.56/x
  3. Step 3: Cross multiply
    603,245.57x = 832,270.52 × 385,581.56
  4. Step 4: Simplify right side
    603,245.57x = 320,908,159,354.35
  5. Step 5: Solve for x
    x = 320,908,159,354.35/603,245.57
  6. Step 6: Final answer
    x = 531,969.36

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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.