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Finding the Fourth Proportional to 649.35, 968.56 and 603.99

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Solution

The fourth proportional to 649.35, 968.56 and 603.99 is: 900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.35 : 968.56 = 603.99 : x
  2. Step 2: Convert to fraction form
    649.35/968.56 = 603.99/x
  3. Step 3: Cross multiply
    649.35x = 968.56 × 603.99
  4. Step 4: Simplify right side
    649.35x = 584,999.04
  5. Step 5: Solve for x
    x = 584,999.04/649.35
  6. Step 6: Final answer
    x = 900.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.