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Finding the Fourth Proportional to 2,333.94, 3,500.99 and 690.35

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Solution

The fourth proportional to 2,333.94, 3,500.99 and 690.35 is: 1,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.94 : 3,500.99 = 690.35 : x
  2. Step 2: Convert to fraction form
    2,333.94/3,500.99 = 690.35/x
  3. Step 3: Cross multiply
    2,333.94x = 3,500.99 × 690.35
  4. Step 4: Simplify right side
    2,333.94x = 2,416,887.49
  5. Step 5: Solve for x
    x = 2,416,887.49/2,333.94
  6. Step 6: Final answer
    x = 1,035.54

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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.